Melatonin is a naturally secreted hormone which plays a vital role in regulating the body’s sleep / wake cycle.
- Sleep aid – helps with many sleep disorders such as jet lag, rotating work or night shifts, or insomnia 
- Important for learning and memory 
- Effective in treating depression brought on by a certain season (seasonal affective disorder) 
- Helps people lose weight by raising the basal metabolic rate 
- Holds many antioxidant properties – reduces incidence of death in cancer patients , protects cells from radiation,  boosts the immune system 
- Increases the vividness of dreams. 
What Is Melatonin?
Melatonin is a hormone that is secreted naturally by the pineal gland in the brain. It helps regulate your sleep and wake cycles. Melatonin levels rise in your body during the day and peak at night causing sleepiness. As you age, melatonin levels slowly drop and peak much earlier at night. This is why older individuals usually go to sleep much earlier than teenagers and young adults.
Melatonin can be purchased as a supplement in most countries. It can be administered orally as capsules, tablets or liquid and as transdermal patches.
Melatonin Dosage Information
It is always best to take less rather than more when it comes to Melatonin. Each tablet may contain three to ten times the amount of melatonin your body naturally produces for more rapid sleep onset. One study concluded that 0.3mg was just as effective as 3mg.  Another study suggested that larger doses of melatonin can even be counterproductive. When too much melatonin is ingested it can spell over to other areas which are not as well equipped to handle the hormone. Very little efficiency was found at 20mg to 60mg levels. .
How Does Melatonin Work?
Melatonin is a hormone produced in the pineal gland of the brain. Production of melatonin is inhibited by sunlight and expedited by darkness. Levels of melatonin peak in the middle of the night and fall gradually during the second half. When you wake up in the morning your melatonin levels are usually at its lowest. Levels of melatonin affect your sleep-wake cycle causing not only drowsiness but also lowering your body temperature.
Melatonin also functions as an antioxidant meaning it can prevent or repair damage done to certain cells in your body. In less complex life forms this is melatonin’s only known function. It collects OH, O2, NO and can cross not only cell membranes but also the blood-brain barrier giving it antioxidant properties. 
Safety and Side Effects of Melatonin
Melatonin is regarded as being an extremely safe nootropic. No major side effects have been reported and many studies have concluded melatonin is safe for short-term use. Some minor, unwanted side effects may include next-day grogginess, irritability, vivid dream or nightmares, and nausea. 
There have not been any studies conducted on melatonin users for longer than 3-months. Because of this it is recommended that anyone using melatonin take one week break in usage every 2-3 months. Melatonin should also not be taken before operation of heavy machinery as it is known to cause drowsiness.
Where Can I Buy Melatonin?
Melatonin is readily available both online and locally. It can be found everywhere from pharmacies to health stores to major retailers. The best prices can be found online, however. You can compare prices from various online retailers by using our buyer’s guide (in progress) or Buy Melatonin Now!
Below are some of the most commonly asked questions about Melatonin. If you have a question that’s not on this list, send it to us at [email protected] and we will answer it for you.
Should I Take Melatonin?
It has also been proven by studies to increase ones basal metabolic rate. If you are currently trying to lose weight it can hurt to take a melatonin before you go to bed every night. You will burn calories in any state faster than you would without it. It must be taken every day to achieve this goal.
This nootropic isn’t the most proven or powerful smart drug when it comes to boosting learning or memory. I have not experienced any noticeable differences from my personal use even though I usually only use it on nights when I am not as tired as I would like to be. If learning or memory is your goal I would suggest you look for a different nootropic.
I think that everyone should have a bottle of melatonin in their medicine cabinet just for those occasional nights where sleep just won’t seem to come. I wouldn’t add it to my every day regimen unless I had serious sleep issues or I was trying to lose weight.
What Are Some Notable Melatonin Studies?
One study conducted in the year 2000 aimed to analyze the link between peoples’ decrease in melatonin levels that come with age and decrease in people’s basal metabolic rate that comes with age. Melatonin was dispersed to Dawley Rate for 12 weeks. The study concluded that 12 weeks of chronic melatonin use decreased body weight by 7% when compared to the controls. 
A report was also conducted which analyzed a number of studies conducted on melatonin and its effects on various sleep disorders. The studies reviewed were limited to those conducted on human subjects with no restrictions for age, gender, or ethnicity. Only studies with randomized control trials were used. The report concluded that melatonin decreased sleep onset latency in normal sleepers and increased sleep efficiency in normal sleepers. It did not have an effect on the onset of REM sleep in normal sleepers. 
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