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.
Recommended dosage, active amounts, other details. For regulating the sleep cycle, doses of melatonin between 500mcg (0.5mg) and 5mg seem to work. Start with 500mcg, and if it doesnât work, work up to 3-5mg. The benefits of melatonin are not dose-dependent - taking more will not help you fall asleep faster.