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- Skip navigation An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs ...
- The heart is a powerful automatic pump. It's the part of the cardiovascular system we think of most when we think about good health. But healthy blood ...
- Most cataracts are age related. They show up as a cloudy area in the lens.
- Atherosclerosis is a disease in which fatty material is deposited on the wall of an artery. Normally, the walls of an artery are smooth, allowing blood ...
- About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket © 2024 Google ...
- Bunions are usually caused by pressure put on the feet by narrow toed, high-heeled shoes. The shoes press on the big toe and push it toward the second ...
- American College of Emergency Physicians Topics Newsroom About Us Topics Newsroom About Us Heat-Related Illnesses Heat-related illness can be caused by overexposure ...
- A network of specialized muscle cells is found in the heart's walls. These muscle cells send signals to the rest of the heart muscle causing a contraction. ...
(National Library of Medicine) 
(National Institute on Aging) 