Those who suffer from asthma attacks know to avoid certain activities, but the Health and Environmental Tracker (HET) is designed to help warn of an impending attack when it isn't expected. The HET works by incorporating a chest patch and a wristband that go to work to track the wearers' breathing, heart rate, movements and even blood oxygen levels.
The HET could transmit data wirelessly to a smartphone for users to see in the accompanying app to be analyzed. Developed by a team of researchers at North Carolina State University, the HET could help to prevent asthma attacks from being so unexpected and potentially safe lives. The best part of the device is that it's powered by the movement and body heat of the person wearing it for additional flexibility.