The familiar sounds of your heart are made by the heart's valves as they open and close.
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There are 20 feet of blood vessels in each square inch of human skin.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Defensive mutualism involves species that receive food or shelter in return for providing protection
Allen Test: A patent ulnar artery reveals the return of palm perfusion despite radial artery compres
Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ...
Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...