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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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Schematic diagram showing polyclonal response by B cells against linear epitopes.
Green salad
Green Apple Vs. Red Apple
economic question
Chemistry question
Which color is placed at the center of the circle?