Why Do People Have Periods When Most Mammals Don't?
15:52
Why Women Have More Autoimmune Issues Than Men
12:03
Why Some People Don't Have an Inner Monologue
12:06
Why Y Chromosomes Might Disappear
14:10
7 Times Humans Changed Animal Evolution
14:24
5 Things That Attract Mosquitoes
14:29
6 Types of Twins That Are Extremely Rare
6:02
The Overlooked Connection Between ADHD and Sleep
13:40