Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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The human body produces and destroys 15 million blood cells every second.
Examples of structures in which extensive surface area is important for function.
Striking examples where high surface area releases heat.
Skin of an African (left) and Asian (right) elephant.
Location of lymph vessels, lymphatic ducts, and areas of lymph node concentrations.
Fusiform Face Area and Autism
Chest x-ray of lung cancer; cancer is seen on the left side.