Skin, Temperature & Environmental

Fever is the oldest vital sign humans have measured, yet most households still rely on technology that has barely changed in a century. A connected thermometer asks whether temperature data,…

Radon is the second leading cause of lung cancer in the United States. It is colorless, odorless, and present in roughly one in fifteen American homes at levels the EPA…

The air outside your window and the air inside your home tell different stories about your health. Most monitors can only read one of them. In 2021, the World Health…

You spend roughly 90% of your life indoors, breathing air you cannot see and rarely measure. The pollutants in that air may be quietly accelerating the very diseases you are…

Professional sports teams have spent thousands testing athletes’ sweat composition in labs. A $25 patch and your phone camera now approximate the same insight. For decades, the most sophisticated sweat…

Dehydration degrades athletic performance before you feel thirsty, and sweat composition varies so widely between individuals that generic hydration advice may be worse than none at all. A growing body…

The smallest wearable UV sensor ever made fits on your thumbnail, has no battery, and asks a question dermatology has struggled to answer: how much sun did you actually get…

Your skin registers every minute of ultraviolet exposure, but your memory does not. A wearable UV sensor aims to close that dangerous perception gap. In 2019, researchers at Northwestern University…

Continuous overnight temperature sensing is transforming how women understand their cycles, but the science behind basal body temperature reveals both remarkable potential and persistent gaps. Every month, roughly 800 million…

A chest-strap sensor that continuously estimates core body temperature during exercise, offering athletes and military personnel a real-time window into thermoregulation that was previously available only through invasive clinical methods….