Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
One quarter of the human brain is used to control the eyes.
43
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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The lense of the eye continues to grow throughout a person's life.
34
Your body is creating and killing about 2.4 million red blood cells per second.
17
In older people, memory is best early in the morning and then declines during the late afternoon.
33