Human teeth are almost as hard as rocks!
47
A woman's sense of smell is most sensitive during ovulation.
34
The average sperm cell swims at 8 inches per hour.
4
Your skin is actually an organ.
88
Lack of water is the #1 trigger of daytime fatigue.
148
Ernest Hemingway survived through anthrax, malaria, pneumonia, dysentery, skin cancer, hepatitis, anemia, diabetes, high blood pressure, two plane crashes, a ruptured kidney, a ruptured spleen, a ruptured liver, a crushed vertebra, a fractured skull, and more.
67
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
Wearing tight pants can lead to impotence in men.
120