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).
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The average adult has about 21 square feet of skin.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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There are 20 feet of blood vessels in each square inch of human skin.
Embryonic Period
Embryonic Period
Fetal Period
Embryonic Period
Embryonic Period - 4th week
If the price charged for a candy bar is p(x) cents, then x thousand candy bars will be sold in ...