It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
The average sperm cell swims at 8 inches per hour.
76
Your skeleton keeps growing until you are about 35, then you start to shrink.
74
A fetus develops fingerprints at eighteen weeks!
32
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
On average, women have always lived longer than men.
195
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