Can people train themselves to tolerate heat?

A new review of the literature finds no evidence that “placentophagy” is good for mothers. It could even be harmful.

Why not deliver double the shock if you can do it with no extra effort?

I get it now.

From the big bang to cellphones

How a collection of simple graphics from the early days of the personal computer shaped today’s visual shorthand

In deserts around the world, creatures and plants are struggling as their habitats warm.

Bring beauty and joy to your timeline during these stormy final weeks.