Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
Wearing tight pants can lead to impotence in men.
120
The first patented condom was meant to be reused!
47
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 average tastebud lives only 10 days before it dies and is replaced by a new one.
15
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The human brain doesn't stop developing until about 25 years old.
102