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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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.