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2023年5月2日 · An erection starts in your brain. Something you saw, felt, smelled, heard, or thought makes your nerves send chemical messages to the blood vessels in your penis. The arteries relax and open up to ...
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2023年11月17日 · People have two different theories on why it's called the funny bone. First, the nerve pain is activated when the nerve rubs against the humerus bone, which runs from your shoulder to your elbow ...
2023年1月12日 · Pain is most often grouped by the kind of damage that causes it. The two main types are pain caused by tissue damage (also called nociceptive pain) and pain caused by nerve damage (also called ...
2022年8月27日 · What Is Ulcerative Colitis? 1 /21. Ulcerative Colitis is a type of bowel disease that causes long-term inflammation of the cells that line your rectum and colon (also called the large...
2023年5月1日 · 4 min read. Myositis refers to any condition causing inflammation in muscles. Weakness, swelling, and pain are the most common myositis symptoms. Myositis causes include infection, injury,...
2023年6月6日 · 10 min read. What Is HIV Testing? HIV testing, also called HIV screening, is the only way to know if you have the virus. Several types of tests check your blood or other body fluids to see whether...
