Nicholas Florko

Scientists don’t know why cyclosporiasis, a tropical diarrheal disease, is spreading more and more from domestic sources.

The chances of getting stuck for hours in a grounded plane are soaring.

A weight-loss medication eased Serena Williams’s comeback. Experts can’t agree on whether that’s doping.

The new generation of canned cocktails is not your mother’s White Claw.

A new cigarette ban in the U.K. might yield its most dramatic results decades from now, if it sticks around that long.