Your fingernails grow faster in summer.
744
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
The human brain is more active during sleep than during the day.
28
The average sperm cell swims at 8 inches per hour.
4
Only humans shed emotional tears.
331
Yawns are more contagious among people with closer relationships.
163
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13