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Author Question: The three greatest current threats to biodiversity, in order starting with the greatest, are (Read 380 times) |
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
The human body produces and destroys 15 million blood cells every second.
The familiar sounds of your heart are made by the heart's valves as they open and close.
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.