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There are 20 feet of blood vessels in each square inch of human skin.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.