We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Human hair and fingernails continue to grow after death.
7
Every human spent about half an hour as a single cell.
144
Early American humans hunted car-size armadillos and used their shells for houses.
12
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515