Did you know?
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Did you know?
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
A typical termite colony
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
Success Later in Life
A typical General Motors HEI coil installed in the distributor cap. When the coil or distributor cap ...
Many electronic components are used to construct a typical vehicle computer. Notice the quantity of ...
A typical IAC.