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
In older people, memory is best early in the morning and then declines during the late afternoon.
33
35,000 people in the U.S. will die from the flu annually.
6
The average sperm cell swims at 8 inches per hour.
4
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Poor eyesight (myopia) is associated with higher IQ.
232
The average female will have 3.3 pregnancies in her life.
49
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18