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Asthma cases in Americans are about 75% higher today than they were in 1980.

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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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