Abstract: Methods to prevent harm to athletes from overexertion, including inserting a dental appliance into a mouth of each monitored athlete, the dental appliance having sensors for monitoring parameters such as body temperature and hydration level of the athlete. Obtaining at a monitoring station wireless transmissions of current measurements from each of the dental appliances. Storing measurements along with a source of the measurements and a time associated with the measurements. Providing a notification when a monitored athlete is in danger from overexertion as indicated by a trend in the stored measurements.

Abstract: Methods and systems for monitoring biometric and/or environmental data of a user are provided. The user monitoring system includes a dental appliance configured to fit substantially inside a mouth of a user, a pulse oximeter for measuring user oxygen saturation level, a pressure sensor for measuring pressure exerted by the user and a processor for acquiring and processing oxygen saturation and pressure data of the user. The user monitoring system may communicate with an observer monitoring system. In some embodiments, the user monitoring system also measures one or more of ambient air temperature, light levels, respiration rate and environmental hazards.

Abstract: Methods and systems for monitoring biometric and/or environmental data of a user are provided. The user monitoring system includes a dental appliance configured to fit substantially inside a mouth of a user, a temperature sensor for measuring user temperature, a pressure sensor for measuring pressure exerted by the user, and a processor for acquiring and processing temperature and pressure data of the user. The user monitoring system may communicate with an observer monitoring system. In some embodiments, the user monitoring system also measures one or more of blood oxygen saturation level, proper placement of the dental appliance, ambient air temperature, light levels and respiration rate.

Abstract: Methods and systems for monitoring biometric and/or environmental data of a user are provided. The user monitoring system includes a dental appliance configured to fit substantially inside a mouth of a user, a temperature sensor for measuring user temperature, a force sensor for measuring force experienced by the user and a processor for acquiring and processing temperature and force data of the user. The user monitoring system may communicate with an observer monitoring system. In some embodiments, the user monitoring system also measures one or more of blood oxygen saturation level, proper placement of the dental appliance, ambient air temperature, light levels and respiration rate.

Abstract: A body temperature monitoring system comprises a mouth guard, a temperature-sensing unit associated with the mouth guard, and an indicator unit responsive to the temperature-sensing unit. The indicator unit indicates if a body temperature sensed by the temperature-sensing unit is outside of a pre-selected range. The indicator unit may be programmed to actuate an indicator when the temperature-sensing unit senses one or more temperatures that fall outside the pre-selected range. In one implementation, the indicator unit receives a string of multiple temperature readings and determines which temperatures are valid and invalid, and averages the valid temperatures. A method of monitoring a person's body temperature that parallels the above device is also described.