Arc Health is a low-cost wearable temperature sensor that aids the user in maintaining healthy body temperature. It establishes a baseline temperature to compare to subsequent temperature oscillations in the body that the sensor detects and measures. The AI app converts the user’s temperature sensor information to creates the user’s baseline temperature. When a deviation in the user’s baseline temperature occurs, the user is notified through the Arc Health app. With wireless temperature sensing, users can see temperature oscillations early before body temperature rises to unhealthy levels so that the user may take appropriate action. The patch requires no batteries and is activated by field energy generated by proximity to a smartphone, with temperature data uploaded to the Arc Health app.