Humans Used to Sleep Twice Every Night. Here's Why It Vanished. shared by Michaell

@Snazzyman · Nov 2, 2025

I just found this interesting and possibly a solution to many sleep challenges

Humans Used to Sleep Twice Every Night. Here's Why It Vanished.

Sleep wasn't always like this.

sciencealert.com

Humans Used to Sleep Twice Every Night. Here's Why It Vanished. - shared by Michaell - Seabird