Abstract: Presented are an apparatus, method and electrosurgical device for surgical procedures. An exemplary apparatus includes a body comprising a longitudinal axis and an electrical wire maintained within the body extending along the longitudinal axis, and an electrode extending from a distal end of the body operably coupled to the electrical wire, the electrode with the electrical wire operable to conduct a flow of current at a plurality of levels. The apparatus further includes a first button arranged on an external surface of the body, the first button operable for selecting the flow of current at each one of the plurality of levels through the electrical wire and the electrode, and a second button arranged on the external surface of the body adjacent the first button, the second button operable activate and deactivate the flow of current to the electrode.

Abstract: Apparatuses, systems and methods of providing a personal air quality monitor. The personal air quality monitor may include a housing suitable for physical association with a person; an air inlet capable of providing air flow from an environment outside the housing to a chamber within the housing; a plurality of sensor resident within the chamber, suitable for receiving the airflow and measuring air quality factors associated with the airflow; and a communication system suitable for processing the air quality factor measurements and communicating the processed air quality factor measurements to a user interface cognizable to the person.

Abstract: An emergency cardiac and electrocardiogram (ECG) electrode placement device with artificial intelligence is disclosed herein. The emergency cardiac and electrocardiogram (ECG) electrode placement device incorporates electrical conducting materials and elastic material into a pad that is applied to a chest wall of a patient, which places multiple electrodes in the appropriate anatomic locations on the patient to quickly obtain an ECG in a pre-hospital setting. The AI program continuously runs EKGs to continuously monitor a patient.

Abstract: The present disclosure provides an electronic device. The electronic device includes a flexible element, and a sensing element adjacent to the flexible element and configured to detect a biosignal. The electronic device also includes an active component in the flexible element and electrically connected with the sensing element. A method of manufacturing an electronic device is also disclosed.

Abstract: The present disclosure provides for using multiple inertial measurement units (IMUs) to recognize particular user activity, such as particular types of exercises and repetitions of such exercises. The IMUs may be located in consumer products, such as smartwatches and earbuds. Each IMU may include an accelerometer and a gyroscope, each with three axes of measurement, for a total of 12 raw measurement streams. A training image includes a plurality of subplots or tiles, each depicting a separate data stream. The training image is then used to train a machine learning model to recognize IMU data as corresponding to a particular type of exercise.

Abstract: A system comprises a sensor device and processing circuitry. The sensor device comprises a housing configured to be disposed above shoulders of a patient, a plurality of electrodes on the housing, a motion sensor, and sensing circuitry configured to sense a brain electrical signal and a cardiac electrical signal via the electrodes, and a motion signal via the motion sensor. The processing circuitry is configured to determine values over time of one or more parameters from the brain electrical signal, determine values over time of one or more parameters from the cardiac electrical signal, and generate at least one of a detection, prediction, or a classification a condition of the patient based on the values and the motion signal.

Abstract: In some aspects, a non-transitory computer readable medium is disclosed that has an application stored thereon that when executed by a processor of an electronic device causes the processor to perform a process. The process can include receiving motion data from a motion sensor, the motion data being indicative of motion by a user while wearing the motion sensor. The process can also include transmitting the motion data to a server, receiving from the server a time that the motion data indicates a foot of the user experienced a loading force which risked adversely impacting an existing foot ulcer or causing a new foot ulcer, determining a geographic location of the motion sensor at the time that the foot experienced the loading force, displaying the time and the geographic location, and requesting that the user identify an activity engaged in by the user at the time and the geographic location.

Abstract: A method for training a learning system to identify components of time-based data streams includes processing, by a machine vision component in communication with a learning system, a video file to detect at least one object in the video file. The method includes generating by the machine vision component an output including data relating to the at least one object and the video file. The method includes analyzing, by a learning system, the output. The method includes identifying, by the learning system, an unidentified object in the processed video file.

Abstract: Video frames from a video are compressed into a single image or a single data structure that represents a unique visual flowprint or visual signature for a given activity being modeled from the video frames. The flowprint comprises a computed summary of the original pixel values associated with the video frames within the single image and the flowprint is specific to movements occurring within the video frames that are associated with the given activity. In an embodiment, the flowprint is provided as input to a machine-learning algorithm to allow the algorithm to perform object tracking and monitoring from the flowprint rather than from the video frames of the video, which substantially improves processor load and memory utilization on a device that executes the algorithm, and substantially improved responsiveness of the algorithm.

Abstract: Systems and methods for assessing sympathetic nervous system (SNS) tone for renal neuromodulation therapy are disclosed herein. A system configured in accordance with embodiments of the present technology can include, for example, a detector attached to or implanted in a patient and a receiver communicatively coupled to the detector. The detector can measure cardiac data and the receiver and/or a device communicatively coupled thereto can analyze the cardiac data to provide one or more SNS tone indicators. The SNS tone indicators can be used to determine whether a patient will be responsive to a neuromodulation therapy and/or whether a neuromodulation therapy was effective.

Abstract: Methods and systems for simplifying data collected from assets are provided. An example method involves receiving a simplified set of data at a server. The simplified set of data is generated by application of a dataset simplification algorithm on raw data obtained from a data source at an asset upon a determination that a recently obtained point in the raw data differed from a corresponding predicted point predicted by extrapolation based on previously saved points included in one or more previously generated simplified sets of data by an amount of extrapolation error that is limited by an upper bound that is fixed as the raw data is collected over time. The method further involves receiving a request for a status of the asset and extrapolating a status of the asset based on the simplified set of data in response to the request.

Abstract: Present invention provide a system and a method for recording, evaluating, screening and monitoring life style associated Non-communicable diseases related data of a subject via an Integrated Medical Device (IMD) in real time, and sharing the same on a server, either local or cloud based, for fast, active sharing of data by remote users anytime anywhere.

Abstract: A guidewire system includes an elongated wire configured for insertion into a luminal space, such as the vasculature, of a body. The wire is conductive and configured to conduct electrical signals. One or more sensors are coupled to a distal section of the wire and configured to send and receive the electrical signals via the wire. The wire through which the one or more sensors are coupled is the only wire through which the one or more sensors send and receive the electrical signals.

Abstract: Disclosed is a physiologic monitoring system comprising a central hub in communication with a management portal for communicating physiologic measurements taken from a plurality of peripheral devices on a patient. At least one non-invasive peripheral device may measure physiologic data from a patient and be in communication with said central hub. A system including an invasive peripheral device may be associated with said patient and be in communication with said central hub. The central hub may be scalable to collect and communicate measurements from the non-invasive peripheral device and the invasive peripheral device. The at least one non-invasive peripheral device may include a blood pressure cuff, an oxygen sensor, a weight scale, and an ECG monitor. The invasive peripheral device may include a wireless sensor reader that may be adapted to measure physiologic data from a sensor implant placed within the cardiovascular system of said patient.

Abstract: The present invention relates to a customized stretchable wearable device and a manufacturing method therefor, enabling the manufacturing of a customized stretchable wearable device which fits the body characteristics of a wearing subject who is wearing the wearable device, thereby enabling good wear comfort and sense of operation, and also a beautiful exterior.

Abstract: Disclosed are system, method, and computer program product embodiments for determining a digital marker. An embodiment operates by determining one or more oculometric parameters associated with an eye of a user using a video stream. The video stream comprises at least one image of a face of the user. The embodiment then determines a pupillary response function of brightness or a gaze response function by performing a deconvolution process based on at least the one or more oculometric parameters. The pupillary response function of brightness or the gaze response function is indicative of a response of the eye of the user to an external factor. The embodiment determines one or more digital markers of the user based on the pupillary response function of brightness or the gaze response function. The one or more digital markers are indicative of a neurological condition or a mental health condition of the user.

Abstract: Implementations relate to role change requests that can be delayed and/or implemented according to circumstances associated with an interaction between a user and an automated assistant. A role change request can cause a designation of auxiliary devices (e.g., earbuds and/or any other peripheral devices) to be changed, and at least cause a different auxiliary device to be tasked with directly communicating with a principal device (e.g., a cellular phone). For instance, when an auxiliary device is requesting a role change request during an assistant interaction, an operating system of the principal device can identify factors that form the basis for determining whether to immediately implement the role change request or, instead, to delay or refuse implementation of the role change request. When the factors indicate that the role change request is not particularly urgent, the operating system can cause the role change request to be delayed until the assistant interaction is complete.

Abstract: An intraoral device wearable by a patient may include an intraoral device body, a first advancement structure configured to be coupled to a first jaw of the patient. and a second advancement structure configured to be coupled to a second jaw of the patient. The device may also include an intraoral actuator coupled to the first advancement structure to displace a lower jaw of the patient from a first position to a second position. The first position may be a habitual jaw position and the second position may be a modified jaw position. Displacing the lower jaw of the patient may include moving the lower jaw from the habitual jaw position to the modified jaw position based at least in part on data from at least one sensor.

Abstract: Provided is a system capable of determining a stress coping style of a test subject in a non-contact state. The system includes a biological information acquiring part which acquires biological information of a test subject in a non-contact state, and a determining part which determines a stress coping style of the test subject based on the biological information and a response pattern specified in advance. The response pattern is specified by a hemodynamic parameter.

Abstract: This disclosure is related to methods of objectively detecting and measuring neuropathic pain in a subject.

Abstract: System and methods are provided for augmented reality displays for medical and physiological monitoring. Augmented reality user interfaces are virtually pinned to a physical device, a location, or to a patient. An augmented reality position determination process determines the presentation of user interfaces relative to reference positions and reference objects. Detection of gestures causes the augmented reality users interfaces to be updated, such as pinning a user interface to a device, location, or patient. Looking away from an augmented reality user interface causes the user interface to minimize or disappear in an augmented reality display. An augmented reality gesture detection process determines gestures based on captured image data and computer vision techniques performed on the image data.

Abstract: An autonomous working system includes an autonomous working apparatus and a second apparatus independent of the autonomous working apparatus. The autonomous working system includes a control circuit, wherein the control circuit includes a rain sensor, including a first electrode and a second electrode; a switching circuit, connected to the first electrode and the second electrode, and configured to operatively exchange the polarities of the first electrode and the second electrode; a detection module, configured to obtain an electrical signal of the rain sensor; a judgement module, configured to determine whether the electrical signal and a first threshold satisfy a first relationship; and a behavior control module, configured to control the autonomous working apparatus to change the behavior status when it is determined that the electrical signal and the first threshold satisfy the first relationship.

Abstract: A method includes obtaining prescribing drug information and published guidelines for each of a plurality of ADMs available for managing glucose levels, and receiving patient information associated with a patient. The method also includes ordering total demerit values from lowest to highest, selecting a predetermined number of recommended ADMs associated with the lowest total demerit values, and determining a recommended dosage for each recommended ADM. The method also includes transmitting a therapy regimen to a patient device associated with the patient. The therapy regimen includes the recommended ADMs and the recommended dosage for each recommended ADM.

Abstract: A system and method for creating small data size representations of images, created on the image detection device, over wireless connections when there is insufficient bandwidth to support detailed images is disclosed. Image data size is often too large to send over low-powered long-distance wireless connections. Image data must be dramatically reduced to enable use of the lowest-power longest-distance wireless platforms including LoRa with LoRaWAN. Common image compression algorithms include jpeg and mpeg that provide only moderate reductions in data size. The described invention reduces data size beyond jpeg compression by reducing targeted image objects to simple outlines, contours or vectors. Monitoring security, wildlife, agricultural and other natural events require images of objects including insects, crops, livestock, wildlife or intruders. Contours, outlines or vectors of targeted objects are often sufficiently recognizable to provide useful information.

Abstract: A first collection of biometric data of a user on a mattress of the bed system is sensed via a sensor of the bed system. The user is instructed to perform an exercise activity. The user is instructed to return to and lay on the mattress after performing the exercise activity. A second collection of biometric data of the user on the mattress of the bed system is sensed via the sensor of the bed system again after the user has performed the exercise activity. A stress test output is generated based on the sensed first biometric data and the sensed second biometric data. The stress test output is displayed to the user.

Abstract: Embodiments disclosed herein utilize biometric verification from wearable devices to approve access for shared spaces. Requests to occupy the shared spaces are received and conditional reservations are made pending health checks of the requesters. Prior to occupation, fresh biometric measurements are captured via the user's wearable device, which include physiological signals validating both ongoing good health as well as identity match to the original requester. When recent biometric verification indicates both healthy status and unchanged identity, access to the reserved space is approved. These embodiments securely manage reservations while protecting the health of other occupants through conditional access related to the requester's current health condition.

Abstract: The present disclosure generally relates to user interfaces for health applications. In some embodiments, exemplary user interfaces for managing health and safety features on an electronic device are described. In some embodiments, exemplary user interfaces for managing the setup of a health feature on an electronic device are described. In some embodiments, exemplary user interfaces for managing background health measurements on an electronic device are described. In some embodiments, exemplary user interfaces for managing a biometric measurement taken using an electronic device are described. In some embodiments, exemplary user interfaces for providing results for captured health information on an electronic device are described. In some embodiments, exemplary user interfaces for managing background health measurements on an electronic device are described.

Abstract: An apparatus for estimating a core body temperature of an object is provided. According to one embodiment, the apparatus includes a plurality of sensors configured to obtain data from an object and a processor configured to obtain a surface temperature, a heat flux, a skin blood flow rate, and a blood flow velocity by using the data obtained from the plurality of sensors, obtain a skin thermal conductivity based on the skin blood flow rate, and estimate a core body temperature of the object based on the surface temperature, the heat flux, the skin thermal conductivity, and the blood flow velocity of the object.

Abstract: In part, the invention relates to methods, apparatus, and systems suitable for determining a fractional flow reserve (FFR) and variations of modifications thereof One embodiment relates to a method and apparatus for obtaining a corrected FFR in a vessel having a stenosis. In one aspect, the invention relates to an apparatus for measuring corrected FFR of a vessel having a stenosis. In one embodiment, the apparatus includes a probe comprising an optical coherence tomography assembly and a pressure assembly; and a processor in communication with the optical coherence tomography assembly and the pressure assembly. In one embodiment, the pressure assembly measures values of pressure in predetermined locations the vessel and communicates them to the processor. In one embodiment, a dual guidewire is used to reduce the interference in the pressure measurement.

Abstract: An illumination system for eye tracking is described herein. The illumination system may include a laser light source and an ultra-fast scanning micro-electromechanical system (MEMS) operating at a frequency range from about 10 kHz to about 100 kHz to reflect laser light to the eye and generating a desired fringe pattern controlling intensity and timing. A surface of the MEMS may include diffractive optical element (DOE) to reflect the laser light as a concentrated optical beam. The light may also be projected by grating-based illuminators on a photonic integrated circuit (PIC) controlled through adiabatic couplers projecting multiple binary/grayscale images onto the eye. On the detection side, a 2D single-photon avalanche diode (SPAD) sensor or a SPAD array detector and an active MEMS shutter array may be used. Compressive sensing techniques may be applied on the detection side.

Abstract: Techniques for prioritizing similarities and differences during responses to incidents based on incident context are provided. Video and audio of an initial response to a first incident at an incident location is monitored. A context for the initial response is created. Video and audio of a subsequent response to a second incident at the incident location is monitored. The video and audio of the initial response and the subsequent response is compared. A machine learning model prioritizes the similarities and differences between the video and audio based on the context. The similarities and differences between the video and audio are provided to a subsequent responder based on the prioritization.

Abstract: A system and method of displaying neonatal health information are disclosed. In one aspect, the method includes receiving data characterizing a start of an APGAR timer; receiving a time value associated with a current time of the APGAR timer; receiving and displaying on an electronic display a plurality of time windows and a corresponding plurality of target values, each of the plurality of target values representing a predetermined blood oxygen threshold value in connection with a corresponding one of the plurality of time windows; receiving and displaying on an electronic display a measured blood oxygen level value; and highlighting, on the electronic display, a first of the plurality of target values and a corresponding first of the plurality of time windows when the time value associated with the current time of the APGAR timer reaches a first time value.

Abstract: A method to measure sound-producing behaviors of a subject with a power- and bandwidth-limited electronic device that includes a processor includes measuring, by a microphone communicatively coupled to the processor, sound in a vicinity of the subject to generate an audio data signal that represents the sound. The method also includes measuring, by at least one second sensor communicatively coupled to the processor, at least one parameter other than sound to generate at least a second data signal that represents the at least one parameter other than sound. The method also includes detecting one or more sound-producing behaviors of the subject based on: both the audio data signal and the second data signal; or information derived from both the audio data signal and the second data signal.

Abstract: Wearable sensors and uses thereof are disclosed. Preferred sensors include surface EMG electrodes for measuring electrical muscle activity, by which muscle contraction is measured. Such muscle contraction can be used to determine a person's posture, especially when the contraction being measured is that of core muscles. An alert preferably is provided to a person in real time when an incorrect posture is detected. By providing such biofeedback, a person is trained in maintaining a good posture. Such posture training is believed to heal alleviate or even present lower back pain. Wearable sensors of the invention also can be used to measure contraction in muscles during exercise, including running and strength training, to gain information for use in improving such activities.

Abstract: Methods and systems are provided for measuring anatomical dimensions from a single two-dimensional (2D) digital image. The digital image is taken from the front/anterior view using a mobile, handheld communication device. The linear measurements are used to estimate the body volume of the individual. Total body density is calculated from estimated body volume and body weight. Body composition (fat mass and fat-free mass) of the individual is derived from density using known mathematical conversion formulas. A method for estimating body composition analysis is provided. Systems and methods are provided that determine an individual's fitness by determining body composition of the individual using a picture of the individual, determining the individual's VO2 max based on the individual's movement (e.g., walking and/or running a measured distance over a measured amount of time), and determining the individual's fitness based on the body composition and the determined VO2 max.

Abstract: A method for monitoring intoxication of a user, the method including: receiving a set of samples from a body region of a user; generating an intoxication metric based on the set of samples; and providing a notification to the user based on the intoxication metric. The method can additionally or alternatively include: modifying operation of the transdermal alcohol sensing device based on the intoxication metric; determining contextual data; maintaining a hydration level of the transdermal alcohol sensing device; and any other suitable processes. A system for monitoring intoxication of a user including a sensor and a housing. The system can additionally or alternatively include any or all of: an inlet, a fastener, an electronics subsystem, a user device, and/or any other suitable component.

Abstract: A system and a method of performing screening tests for diagnosing a developmental condition of a human subject may include: receiving one or more profile data elements pertaining to the human subject; receiving one or more first behavioral data elements that may include information that is indicative of a behavior of a human subject from one or more data sources; analyzing the one or more first behavioral data elements in view of the one or more profile data elements to obtain a suspected impediment of development of the human subject; and presenting to the human subject a personalized test, adapted to diagnose the developmental condition of the human subject in view of the suspected impediment, to perform on a UI of a computing device according to the suspected impediment.

Abstract: Wireless systems and methods are provided for protecting vital organs from blood flow loss, and for physiological monitoring of a subject in various settings. The systems and methods permit the coordinated delivery of various treatment protocols involving inflation or deflation of cuffs to multiple limbs of the subject.

Abstract: A device for implantation in a left atrial appendage of the heart comprises docking station comprising a radially expansible element that is adjustable between a contracted orientation suitable for transluminal delivery and a deployed orientation configured to anchor within the left atrial appendage and fluidically isolate the left atrial appendage from the left atrium, the docking station also includes a recessed socket accessible from the left atrium through an opening, and a closure coving the opening. A modular active element is configured for detachable engagement within the recessed socket of the docking station. The modular active element comprises a treatment element configured to electrically stimulate heart tissue, thermally stimulate heart tissue, electroporate heart tissue, or deliver a substance into heart tissue or a chamber of the heart, or a sensing element configured to detect a parameter selected from temperature, pressure, electrical signal, heart rate, or respiratory rate.

Abstract: Disclosed are devices, systems and methods for implantable a biofuel cells. In some aspects, a biofuel cell device for extracting energy from a biological fluid includes a substrate including two compartments each with one or more openings; an anode assembly disposed in the substrate and including an anode electrode and functionalization material to facilitate an oxidative process that releases electrons captured at the anode electrode; and a cathode assembly disposed in the substrate separated from the anode assembly and including a catalytic material facilitate a chemical reduction process such that the biofuel cell device extracts electrical energy from the substance in the biological fluid.

Abstract: A method of monitoring hydration including obtaining biological data for a given period of time, wherein the biological data includes measurements of one or more biological indicators; converting the biological data into a baseline value; obtaining real-time biological data from one or more biological sensors; performing a pre-processing analysis of the real-time biological data; comparing the real-time biological data with baseline value to create a hydration index.

Abstract: An apparatus for estimating a core body temperature of an object is provided. According to one embodiment, the apparatus includes a plurality of sensors configured to obtain data from an object and a processor configured to obtain a surface temperature, a heat flux, a skin blood flow rate, and a blood flow velocity by using the data obtained from the plurality of sensors, obtain a skin thermal conductivity based on the skin blood flow rate, and estimate a core body temperature of the object based on the surface temperature, the heat flux, the skin thermal conductivity, and the blood flow velocity of the object.

Abstract: A technology for obtaining a respiratory rate from a photoplethysmogram (PPG) signal. In one example, an artificial neural network model can be trained to predict a respiratory rate using a training dataset containing PPG data. The artificial neural network model can include a first series of convolutional layers to remove artifacts from a PPG signal, a fast Fourier transform (FFT) layer to convert the PPG signal to PPG frequency representations, and a dense layer to decode the PPG frequency representations to respiratory rate predictions. After training the artificial neural network model, PPG data generated by a pulse oximeter monitor can be obtained, and the PPG data can be input to the artificial neural network model. The artificial neural network model outputs a respiratory rate prediction, wherein the respiratory rate prediction represents the respiratory rate obtained from the PPG signal.

Abstract: In a sensor system (12), output signals of at least one PPG sensor (14) are processed to derive a modified pulse amplitude variation (PAV) value, being modified to take account of a baseline variation of the PPG sensor output signal. In particular, the modified PAV is derived through performing a modification step (42) in which either: a baseline variation of the PPG sensor output is derived and combined with a previously derived PAV, or, a PPG sensor output is first processed to perform baseline variation compensation, in advance of then deriving a PAV from the compensated signal.

Abstract: A method of detecting the likelihood of a seizure event in a patient includes at successive expirations of a first time interval, determining a first likelihood that the patient is experiencing a seizure based on electrodermal activity and a movement of a limb of the patient. The method also includes at successive expirations of a second time interval, determining whether the patient experienced a seizure in a second time period preceding the determining based on a heart rate of the patient. In response to determining that the third comparison result satisfies at least a third detection criterion, the method compares electrodermal activity and the movement of a limb of the patient to determine a second likelihood. In response to determining that the second likelihood satisfies a second detection criterion, the method triggers presentation of a second alert regarding a potential seizure.

Abstract: A component measurement device for measuring a given component contained in a sample. The component measurement device includes an excitation light source to emit excitation light onto the optical medium portion, a probe light source to emit probe light onto the optical medium portion, an intensity modulation unit to perform intensity modulation on the excitation light emitted by the excitation light source based on stratum corneum information about stratum corneum of the sample to generate intensity-modulated excitation light and emit the generated intensity-modulated excitation light onto the optical medium portion, and a measurement unit to measure the given component based on a difference between the probe light emitted from the optical medium portion in a first state where the excitation light is emitted and the probe light emitted from the optical medium portion in a second state where the intensity-modulated excitation light is emitted.

Abstract: A method for augmenting a real-world scene viewed through augmented reality (AR) glasses includes determining that an overlay should be processed for a real-world person being viewed via the AR glasses, with the determining using artificial intelligence (AI) to identify a trigger scenario. The AI is configured to process a video stream of images captured of the real-world person using a camera of the AR glasses to identify the trigger scenario, which is associated with an intensity level exhibited by the real-world person. The method also includes identifying the overlay to replace a portion of the real-world person in the video stream of images, and generating an augmented video stream that includes the video stream composited with the overlay. The augmented video stream being presented via the AR glasses is configured to adjust the intensity level exhibited by the real-world person when viewed via the AR glasses.

Abstract: An eyewear device, method for use with an eyewear device, and a non-transient computer readable medium for detecting blood sugar levels are disclosed. The eyewear device has a frame including a first rim configured to support a first lens, a second rim configured to support a second lens, and a bridge connecting the first rim to the second rim. The bridge is configured to receive a nose of a user when the eyewear device is worn by the user. Blood sugar levels are detected by monitoring behavior of a pupil of an eye of the user with a sensor, comparing the monitored behavior with known blood sugar level behaviors, identifying a match responsive to the comparison between the monitored behavior and one of the known blood sugar level behaviors corresponding to a particular blood sugar level, and selecting the particular blood sugar level as a blood sugar level of the user.

Abstract: Systems and methods for assisting user with hearing by amplifying sound using an amplifier with gain and amplitude controls for a plurality of frequencies; and applying a learning machine to identify an aural environment and adjust the amplifiers for optimum hearing.

Abstract: Systems and methods to determine a risk factor related to dehydration and thermal stress of a subject are disclosed. Exemplary implementations may: generate output signals, by one or more sensors worn on a body of a subject, conveying information related to one or more of location of the subject, motion of the subject, temperature of the subject, cardiovascular parameters of the subject; store information related to the subject; obtain the output signals; determine in an ongoing manner, from the output signals, values of a water loss metric that correlates with estimated percentage of bodyweight of the subject lost in water; obtain heat index information for a contextual environment surrounding the subject; determine in an ongoing manner, from the output signals, values of an exertion metric that correlates with exertion of the subject due to work; and determine in an ongoing manner values for an aggregated risk factor of the subject.