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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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

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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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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Animal extinctions and human population growth. Animal extinctions and human population growth.
world percentage of religion world percentage of religion
Types of tissue in the human body. Types of tissue in the human body.
Synaptogenesis and Pruning in the Human Cortex Synaptogenesis and Pruning in the Human Cortex
The Gender Pay Gap Over Time: What Percentage of Men's Income Do Women Earn? The Gender Pay Gap Over Time: What Percentage of Men's Income Do Women Earn?
Chart showing average yearly dose of radiation from natural and human-made sources Chart showing average yearly dose of radiation from natural and human-made sources
Video: Supine Position

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