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Author Question: The process of matching up rock layers in different localities by the use of index fossils or other ... (Read 70 times) |
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.