For the record, melatonin is a hormone, and it's not a regulated drug under the FDA.    From Wordnik.com.  [Dr. Michael J. Breus: Something New in Melatonin?] Reference

This article on sleep and melatonin is also available at Dr. Breus's official blog, The Insomnia Blog.    From Wordnik.com.  [Dr. Michael J. Breus: Something New in Melatonin?] Reference

Your body actually produces a hormone known as melatonin, and this is a hormone that seems to be produced mainly at night.    From Wordnik.com.  [CNN Transcript Jun 19, 2003] Reference

During the sleep cycle, your body releases a hormone called melatonin, which has positive effects on your skin and your immune system.    From Wordnik.com.  [The Full Feed from HuffingtonPost.com] Reference

Well, melatonin, that is a substance that your body produces.    From Wordnik.com.  [CNN Transcript Jun 4, 2003] Reference

It has 2 milligrams of melatonin, which is 20 times the amount found in the body naturally.    From Wordnik.com.  [Cleveland Leader - Cleveland News & More!] Reference

Researchers have said that two chemicals called melatonin and serotonin may be involved in SAD.    From Wordnik.com.  [Medindia Health News] Reference

Lack of sleep weakens the immune system and may cause decreased production of melatonin, which is produced by the brain during sleep.    From Wordnik.com.  [NaturalNews.com] Reference

This synthetic hormone treatment boosts your body's own supply of melatonin, which is produced during night-time hours to help you sleep.    From Wordnik.com.  [Can you do anything to prepare for jet lag?] Reference

Some people use melatonin which is a type of medication as well.    From Wordnik.com.  [CNN Transcript Apr 24, 2009] Reference

Sometimes medications such as melatonin can also be used to reset the clock.    From Wordnik.com.  [Health for Life M.D.: Sleeping Well] Reference

They contain supplements such as melatonin, valerian root or tryptophan.    From Wordnik.com.  [Marketplace] Reference

Ensuring a good night's rest may require taking a sleep supplement such as melatonin to induce a deep state of relaxation.    From Wordnik.com.  [Improving Your Health] Reference

I used to call melatonin.    From Wordnik.com.  [Ask MetaFilter] Reference

So some parents are turning to melatonin for help.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

Dr. Sanjay Gupta weighs the pros and cons of melatonin.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

When it gets dark outside, Tony, you make more melatonin.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

They also say that it could be interfering with melatonin.    From Wordnik.com.  [CNN Transcript Jan 22, 2008] Reference

But some parents say they're finding help in a pill in melatonin.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

So the thought was, you give melatonin, it may help somebody sleep.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

But melatonin is probably the best known supplement for that problem.    From Wordnik.com.  [CNN Transcript Mar 20, 2004] Reference

And he says, he saw "a product that combines valerian and melatonin.".    From Wordnik.com.  [CNN Transcript Mar 20, 2004] Reference

In fact, as darkness falls, your body typically makes more melatonin.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

Regular exercise appears to help and also something called melatonin.    From Wordnik.com.  [CNN Transcript Dec 16, 2002] Reference

At night, your body makes melatonin, which can help fight off tumors.    From Wordnik.com.  [CNN Transcript Nov 30, 2007] Reference

Again, not a lot of science about melatonin specifically in teenagers.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

Also, it's worth checking with your doctor if melatonin is suitable for you.    From Wordnik.com.  [Can you do anything to prepare for jet lag?] Reference

GUPTA: Well, it might be that they need to take more melatonin during the day.    From Wordnik.com.  [CNN Transcript Jun 4, 2003] Reference

So thought was, if you use melatonin, it might actually help you with your sleep.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

You can also consider melatonin, a hormone that helps regulate the sleep-wake cycle.    From Wordnik.com.  [How to be healthy at 30,000 feet] Reference

What I regret most is not buying some melatonin capsules while in the United States.    From Wordnik.com.  [Can you do anything to prepare for jet lag?] Reference

But again, not a lot of science about the melatonin to recommend it, I think, Kiran.    From Wordnik.com.  [CNN Transcript Mar 7, 2008] Reference

But getting natural melatonin from whole foods like cherries is clearly another story.    From Wordnik.com.  [Dr. Michael J. Breus: Can Cherries Relieve Insomnia?] Reference

Some scientists believed the artificial light tricks the brain into not producing melatonin.    From Wordnik.com.  [CNN Transcript Feb 20, 2008] Reference

Some "urotherapists" credit traces of melatonin in the liquid with boosting the immune system.    From Wordnik.com.  [Gee Whiz] Reference

That's important, because there are several reasons that melatonin might actually be good for you.    From Wordnik.com.  [CNN Transcript Jun 4, 2003] Reference

The photoreceptors Foster identified are activated by the new lights and begin suppressing production of melatonin.    From Wordnik.com.  [NIGHT SHIFT] Reference

It is Dr. Cohen's theory that this residue -- which is prevented by the use of melatonin -- can cause cancer of the breast.    From Wordnik.com.  [Searching For A Better Pill] Reference

And it helps regulate the action of various hormones and neurotransmitters, including serotonin, melatonin, dopamine and adrenaline.    From Wordnik.com.  [What Is Same] Reference