Optimal doses of barley as a food or supplement have not been established for any condition. However, to try to lower cholesterol, people have used one of these daily doses: 1  3 grams of barley oil extract. 2  30 grams of barley bran flour.
Your body creates sweat when your internal core temperature becomes too high, since moisture naturally cools your body. The same concept is true should you find yourself wet while in cold weather or sweaty after a strenuous workout. Towel off and find dry clothes to raise your core body temperature again.
If body temperature is below the set point, muscles shiver to generate heat and the constriction of the blood vessels helps the body retain heat. This example is very complex because the hypothalamus can change the body's temperature set point, such as raising it during a fever to help fight an infection.