Heart disease is the leading cause of death among firefighters, in large part because of their extended exposure to high-heat situations, a problem that also affects industrial workers and members of the military. SlateSafety aims to solve this problem with the BioTrac Band ($495), a wearable tracking device that watches for signs of heat stress. Worn on the arm, the device measures each user’s heart rate, core body temperature and exertion, pinging a cloud-based platform to alert commanders and colleagues when those measures hit unsafe levels. Since its inception, the company has been awarded $1 million by the National Science Foundation and has received three contracts from the Department of Defense; the device is now used by 35 fire departments and the U.S. Army, Navy and Air Force. —Abhishyant Kidangoor
- The 100 Most Influential People of 2024
- Coco Gauff Is Playing for Herself Now
- Scenes From Pro-Palestinian Encampments Across U.S. Universities
- 6 Compliments That Land Every Time
- If You're Dating Right Now, You're Brave: Column
- The AI That Could Heal a Divided Internet
- Fallout Is a Brilliant Model for the Future of Video Game Adaptations
- Want Weekly Recs on What to Watch, Read, and More? Sign Up for Worth Your Time