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Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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

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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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