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Thyroid conditions may make getting pregnant impossible.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.