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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.