Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Posterior view of the Heart, outlining the major arteries
The thymus gland. This gland lies in the mediastinum of the thoracic cavity, just above the heart. I
Filter in the vena cava prevents an embolus from traveling to the heart, lungs, or brain; A, Greenfi
The use of antispasmodics, which block release of Ach or calcium, can result in reduced pain as well ...
Assessing the degree of the burn. Bottom photos show (A) first-degree burn (sunburn) and (B) ...