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There are 20 feet of blood vessels in each square inch of human skin.
Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
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.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
![Injecting an IV push (bolus) medication; C, another type of needleless syringe and needleless IV acc](https://biology-forums.com/gallery/47/medium_18099_26_09_12_4_39_03.jpeg)
![Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T](https://biology-forums.com/gallery/47/medium_12359_23_01_13_7_13_34.png)