Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Yawns are more contagious among people with closer relationships.
163
The average person's skin weighs twice as much as their brain.
131
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Babies crawl an average of 200m a day.
212
In one day, adult lungs move about 10,000 litres of air.
11
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139