Those who get out of bed by 7am are more likely to be thinner and happier.
20
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Human teeth are almost as hard as rocks!
47
The tongue is the strongest muscle in the human body.
50