On average, women have always lived longer than men.
195
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
People who sleep late have more mental stamina and can outperform early risers.
33
Redheads require up to 20% more anesthesia to be knocked out.
112
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
The human brain is insensitive to pain.
76
About 400 different kinds of microbes live on and in the human body.
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