Cofertility manages the costs of egg freezing and storage, in exchange for half the batch. One young client became suspicious of the arrangement—and started to investigate.

Over a billion people worldwide have livers with excess fat, which can lead to a host of medical problems. Researchers think AI tools can spot the condition—and help stop it—early enough to save lives.

A recent study tracked hundreds of soccer fans until their favorite team reached the final of a tournament. Their stress levels skyrocketed, and their heart rates jumped too.