Pain occurs when sounds are above 130 db.
124
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Your heart will pump about 212 million liters in its lifetime.
26
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139