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Author Question: Exhibit 13-1 Two blocks of masses m1 and m2 are connected by a light cord that passes over a pulley ... (Read 197 times) |
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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.