Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
The human brain is insensitive to pain.
76
Your thumb is about the same size as your nose.
124
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
The human brain doesn't stop developing until about 25 years old.
102
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
Gardening is said to be one of the best exercises for maintaining healthy bones.
40