|
|
Did you know?
Everyone has one nostril that is larger than the other.
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.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
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.

