In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
Your fingernails grow faster in summer.
744
Enamel is hardest substance in the human body.
61
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
A human being loses an average of 40 to 100 strands of hair a day.
133
If your DNA was stretched out it would reach to the moon 6,000 times.
256
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
On average, there's 100 billion neurons in the human brain.
83