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There are more nerve cells in one human brain than there are stars in the Milky Way.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).