Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Pain occurs when sounds are above 130 db.
124
A person can live without food for about a month, but only about a week without water.
156
The average person's skin weighs twice as much as their brain.
131
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Gorillas can catch human colds and other illnesses.
205