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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.