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Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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There are more bacteria in your mouth than there are people in the world.