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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The familiar sounds of your heart are made by the heart's valves as they open and close.