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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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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Taking off is one of the main times albatrosses use flapping to fly, and is the most energetically d Taking off is one of the main times albatrosses use flapping to fly, and is the most energetically d
Pre–Main-Sequence Stars Pre–Main-Sequence Stars
Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ... This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ...
An angiogram that illustrates narrowing of the carotid artery (see arrow), the main pathway of blood ... An angiogram that illustrates narrowing of the carotid artery (see arrow), the main pathway of blood ...
Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults. Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults.
Video: Fertilization and Development

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