This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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The average office desk has 400 times more bacteria on it than a toilet.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Excessive alcohol use costs the country approximately $235 billion every year.
Planes of the body.
Thorax Posterior view of human body
Human body cavities and membranes
Body fluid compartments.
Important Trace Elements in the Body
Structure of Complex III (coenzyme Q:cytochrome c oxidoreductase)