Free radicals are highly reactive and unstable molecules that are made by the body naturally as a byproduct of normal metabolism. Free radicals can also be made by the body after exposure to toxins in ...

July 2023 was the hottest month ever recorded. It could even be the hottest month in human history. That heat has tested the limits of our very bodies to tragic effect: In 2003, an estimated 70,000 ...

Tardigrades are renowned for their ability to withstand extreme environments – now we know how they do it. Tiny molecular sensors in their cells can detect when they produce too many damaging ...

This year’s Northern Hemisphere summer has been unlike any other. In July in Mexicali, northern Mexico, temperatures reached a blistering 47 °C, forcing people to remain inside to avoid dizziness and ...

Heat is the leading cause of weather-related deaths in the United States. While the human body is able to withstand high temperatures, unprecedented extreme heat driven by climate change is ...