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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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.