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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Edward Bellamy, author of the utopian novel Looking Backward (1888) Bellamy’s socialism worried many Edward Bellamy, author of the utopian novel Looking Backward (1888) Bellamy’s socialism worried many
Typical Organization of the CPT Manual Typical Organization of the CPT Manual
A typical 3 ton (6,000 lb) capacity hydraulic jack. A typical 3 ton (6,000 lb) capacity hydraulic jack.
A typical bus system showing module CAN communications and twisted pairs of wire. A typical bus system showing module CAN communications and twisted pairs of wire.
A typical hand-operated vacuum pump. A typical hand-operated vacuum pump.
Typical Night’s Sleep for a Young Adult Typical Night’s Sleep for a Young Adult
Video: Stroke volume - contractility definition

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