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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
![When the United States gets stuck over a controversial issue—usually something a divided Congress ca](https://biology-forums.com/gallery/47/medium_262797_12_08_15_1_37_16_22180672.png)
![Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_28_17_223661853.jpeg)