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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.
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.