After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
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
The human sigh acts as a physiological reset button.
23
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46