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Your nose makes about 1 liter of mucus a day, most of which you swallow
A normal amount of nasal mucus and fluids released per day amounts to about 900-1000 milliliters or one liter. These fluids are designed for filtering and heating of the inhaled air you. Although a small part of the discharge you get rid of, for example, when you sneeze, a large part remains in the body, flowing down the back of the throat. Not too pleasant fact, but still - a person can not exist without swallowing their own snot, even if he is not sick.
via factroom.ru
Strauss puts both the largest and the smallest eggs in birds
There is an effect, the opposite effect of the placebo - nocebo