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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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Thyroid conditions may make getting pregnant impossible.

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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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Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part
Lake position in the landscape and proportion of water received as groundwater (data from Webster et Lake position in the landscape and proportion of water received as groundwater (data from Webster et
Paranasal sinuses are part of the upper respiratory system. Paranasal sinuses are part of the upper respiratory system.
Prevalence of Diabetes in the United States Based on Age and Sex Data from the American Diabetes ... Prevalence of Diabetes in the United States Based on Age and Sex Data from the American Diabetes ...
How to solve first-degree equations (Part 1) How to solve first-degree equations (Part 1)
How to convert verbal statements into algebraic equations (Part 2) How to convert verbal statements into algebraic equations (Part 2)
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

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