After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
A fetus develops fingerprints at eighteen weeks!
32
Male hospital patients fall out of bed twice as often as female hospital patients.
71
When your face blushes, the lining of your stomach turns red, too.
154
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
Enamel is hardest substance in the human body.
61