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Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

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.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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There are approximately 3 million unintended pregnancies in the United States each year.

Coleman's parabiosis experiments revealed a satiety factor in wild-type mice that was absent or Coleman's parabiosis experiments revealed a satiety factor in wild-type mice that was absent or
Type C killer whales in the Ross Sea. The eye patch slants forward. Type C killer whales in the Ross Sea. The eye patch slants forward.
CXR of lung cancer with right phrenic nerve paralysis CXR of lung cancer with right phrenic nerve paralysis
Carrie Mae Weems, A Negroid Type, from the series From Here I Saw What Happened and I Cried. Carrie Mae Weems, A Negroid Type, from the series From Here I Saw What Happened and I Cried.
Water consumption by type of use Water consumption by type of use
Video: Contraction and Relaxation Animation

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