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Aug 3, 2005

"There's no such thing as old age, there is only sorrow." --Edith Wharton

The Year to Live

Whatever your age, your body is many years younger. In fact, even if you're middle aged, most of you may be just 10 years old or less. This heartening truth arises from the fact that most of the body's tissues are under constant renewal. But why do people behave their birth age, not their physical age? Scientists believe it is because most brain cell types endure from birth to death without renewal.