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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.