‘Heartbeat’ Bills Get the Science of Fetal Heartbeats All Wrong
Anti-abortion laws lean on the heartbeat as a defining moment of aliveness. But at six weeks, it indicates little more than cells and electrical activity.
Caster Semenya and the Twisted Politics of Testosterone
The ruling that Olympic gold medalist Caster Semenya will need to take testosterone suppressants is already affecting other runners.
Bad Air Linked To Dementia, Bezos’ Lunar Lander, and More News
Catch up on the most important news today in 2 minutes or less.
The Evidence Is Strong: Air Pollution Seems to Cause Dementia
Air pollution is much worse for health than people had thought, increasing the risk of Alzheimer's significantly. Meanwhile, air quality is getting worse.