You spot the same wiry chin hair again. It returns quickly, raising awkward questions about timing, stress, age and hormones.

Your pup is one smart cookie, but is it among the most intelligent dog breeds? Find out with our science-backed ranking.

People who work against their internal clock over a long period of time increase the risk of fatty liver. The correlations are complex, but one research team in Bochum is trying to get to the bottom ...

While some practices remain controversial or speculative, biohackers are united by a shared curiosity: how can we engineer ...