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Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.