Human Brain Structure. The human brain is comprised of a number of different regions. Each of these regions are vitally important with highly specialized functions. The central part of the brain includes the brain stem and the midbrain. The function of the midbrain and has been largely preserved over years of evolution.
Get over jet lag. When you travel, you can take melatonin to help with jet lag, which is daytime fatigue that occurs when changing time zones. The first night you arrive at your destination, you can take 0.5 to 5 mg of melatonin. Taking it can help you sleep and reset your sleeping patterns to match the new time zone you traveled to.
Dosage for Adults. Melatonin dosing doesn't appear to be different for adults or the elderly. Dosages of Melatonin for Sleep have been from 0.1 to 20 mg that have effectively restored sleep pattern problems. One study that found dosages of 0.1 mg, that's just 1/10 of one milligram, to have significant improvements in sleep problems compared melatonin blood levels against a group of healthy people WITHOUT sleep problems.