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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
The familiar sounds of your heart are made by the heart's valves as they open and close.
On average, the stomach produces 2 L of hydrochloric acid per day.
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.