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There are 20 feet of blood vessels in each square inch of human skin.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.