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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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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.

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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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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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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Suggested sequence for palpating lymph nodes Suggested sequence for palpating lymph nodes
Solving a Quartic Solving a Quartic
Solving quadratic Solving quadratic
Solving Cubics Solving Cubics
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Solving a root equation Solving a root equation
Video: The Krebs Cycle Animation

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