Abstract: Provided are systems for grouping users who have chosen to participate into one of a plurality of menstrual cycle groups based on data provided by and/or collected from those users. In some examples, a wearable computing device can include one or more sensors that can measure one or more physiological signals associated with the user. Based on the physiological signals gathered from the one or more sensors, the wearable computing device can determine biometric data for one or more users. Furthermore, the wearable computing device can enable a user to submit information about their menstrual cycle (e.g., via an interactive touch screen). These factors can be used to automatically determine some menstrual cycle data for a user.

Abstract: A system and method for controlling device use is provided. A computing system stores a first state corresponding to a status of one or more functional components of a user device. A user device stores a second state corresponding to the first state and corresponding to the status of the one or more functional components of the user device. An instruction to modify the status of the one or more functional components of the user device is received, and the computing system modifies the first state and the status of the one or more functional components at a network level responsive to the instruction. The user device modifies the second state and the status of the one or more functional components at a device level responsive to the instruction.

Abstract: A system and method for controlling device use is provided. A computing system stores a first state corresponding to a status of one or more functional components of a user device. A user device stores a second state corresponding to the first state and corresponding to the status of the one or more functional components of the user device. An instruction to modify the status of the one or more functional components of the user device is received, and the computing system modifies the first state and the status of the one or more functional components at a network level responsive to the instruction. The user device modifies the second state and the status of the one or more functional components at a device level responsive to the instruction.