Overview
Melatonin: It’s mostly in your head, but not entirely.
Melatonin is a hormone that plays a major role in regulating the “biological clock” — including the sleep-wake cycle. It is
produced in the brain and many other tissues of the body.
Melatonin’s connection to the sleep-wake cycle has been found have applications for a broad range of problems, including:
- insomnia, jet lag, and other sleep disorders
- boring, washed-out dreams (melatonin improves vividness)
- learning under stress
- behavioral disorders in the elderly
- glaucoma
- hypertension (high blood pressure)
- stroke
- headaches and chronic pain
- aging caused by free radical damage
- reproductive quality
- esophageal reflux
- oral herpes
- thrombosis (blood clots) with stress
- traumatic injury to the spinal cord and brain
- Alzheimer’s
- tissue damage from ionizing radiation (x-rays, cancer treatments)
- toxicity from drugs, neural toxins, herbicides, and metals.
The optimum dosage of melatonin varies from person to person and must therefore be found by experimentation. Typical doses
range from 0.5 to 5.0 mg/day.
Read Melatonin Monograph
Melatonin is a hormone found in all animals, that plays a
major role in regulating the “biological clock” — including the
sleep-wake cycle in vertebrate animals. It is produced in the
pineal gland of the brain and in many other tissues of the body.
What we can’t tell you
In the U.S. and some other industrialized countries,
government agencies like the U.S. Food and Drug Administration have
adopted
censorship as a method for intensifying their control over
supplement users and their suppliers. Thus, FDA regulations prohibit
us from telling you that any of our products are effective as
medical treatments, even if they are, in fact, effective.
Accordingly, we will limit our discussion of Formula CS Plus
to a brief summary of relevant research, and let you draw your
own conclusions about what medical conditions it may be
effective in treating.
Melatonin’s connection to the sleep-wake cycle was discovered
in the 1970s, and it has been studied as a treatment for certain
sleep disorders ever since then. More recently, however, it has
been found have applications for a much broader range of problems,
including:
- insomnia, jet lag, and other sleep disorders
- learning under stress
- behavioral disorders in the elderly
- glaucoma
- hypertension (high blood pressure)
- headaches
- aging caused by free radical damage
- chronic pain
- reproductive quality
- esophageal reflux
- oral herpes
- thrombosis with stress
- traumatic injury to the spinal cord and brain
- stroke
- Alzheimer’s
- tissue damage from ionizing radiation
- toxicity from drugs, neural toxins, herbicides, and metals
Let’s look at a few of these applications.
Sleep disorders
Sleep disorders are classified as either “secondary” (i.e.,
caused by other medical conditions or by drugs) or “primary” (not
caused by other medical conditions or drugs). Insomnia is by
far the most common primary sleep disorder.
Early studies showed that the pineal gland produces more
melatonin at night than in the daytime. Darkness itself is the trigger
for this increased melatonin production. Eventually it was
realized that melatonin is an important component of the so-called
“biological clock” (aka “the sleep/wake cycle” or “the
circadian rhythm”) — a physiological process that controls the feeling
of sleepiness and the ability or need to sleep.
Being a key player in sleep regulation doesn’t necessarily
mean that consuming extra melatonin will cause a person to sleep.
Researchers soon tested the idea and reported in 1976 that
indeed melatonin supplementation reduces the time required to go
to sleep and to enter deep sleep — if you take it when your
body is ready for sleep.
Many such studies have been performed. They were summarized
in 2004 in a U.S. government meta-study which concluded that melatonin
is effective in hastening sleep for people with insomnia and
other primary sleep disorders; it is effective in increasing
the efficiency of sleep for people with secondary sleep
disorders; and it is effective in treating jet-lag.
Some of the secondary sleep disorders for which melatonin
supplements have been reported to be beneficial are: insomnia due
to mental disabilities,
aging,
Angelman Syndrome,
or ADHD;
and sleep disruption due to hemodialysis.
As a treatment for insomnia, melatonin has been found to work
best when taken twenty to forty minutes before bedtime.
Doses used in clinical studies range from 0.5 mg to 5 mg. We recommend
starting at about 1 mg and increasing the dose over
a period of about a week to a level that produces the desired
result.
For treating jet lag, a dose of .5 to 5 mg taken shortly
before the desired sleep time has been shown to be effective.
Headaches
21 children with migraine or chronic tension headaches were
given 3 mg of melatonin at bedtime for 3 months. 66% of the children
reported at least a 50% reduction in migraine and tension
headaches.
Headache specialists have been talking for years about how
promising melatonin might be for treating cluster headaches
— and they are still just talking about it.
But we don’t need to wait for these foot-draggers to do the obvious
thing and run a clinical study — melatonin is cheap and
in most countries can be bought without interference from the
government or the medical cartel. People with cluster headaches
can simply conduct their own personal ‘studies’ and in a few
days know whether it works for them — instead of waiting ten
years for the medical profession to get its act together.
Antioxidant protection and aging
Melatonin is one of the body’s antioxidants — it scavenges
several types of reactive ‘free radicals’ that damage almost any
biological structure they touch: DNA, proteins, fats, and other
molecules. The antioxidant functions of melatonin appear to
be unrelated to its hormonal functions — it simply happens to
have a dual functionality.
One of the most harmful of the free radicals is peroxynitrite
which can damage most of the body’s principal macromolecules. Melatonin
combines with peroxynitrites and deactivates them.
Since peroxynitrites are thought to be significant culprits in
causing aging, melatonin is an important anti-aging substance.
Reproduction
Free radical damage to the fetus and placenta happens all too
often during pregnancy and can produce birth defects or miscarriage.
For example, preeclampsia, which occurs in about 5% of all
pregnancies, is a condition in which tissues swell, blood pressure
increases, and oxygen starvation and free radical damage can
occur to the fetus. Melatonin, which is able to pass through
the placenta, sweeps up these free radicals and can protect the
fetus and maternal tissues from being damaged by them.
Learning
Learning under stressful conditions is known to be
problematical.
Animal studies suggest that melatonin decreases the deleterious effect
of stress hormones on learning. Could melatonin supplementation
therefore be used to improve learning ability under stressful
conditions? A recent clinical study confirms that it can:
Fifty healthy young men received either a single oral dose of
3 mg melatonin or a placebo. One hour later, they were exposed
to a standardized psychosocial stressor. During stress,
subjects memorized objects distributed in the test room, for which
memory was assessed a day later. Melatonin specifically
enhanced recognition memory of objects memorized under stress.
Hypertension
Melatonin plays a role in blood pressure regulation —
melatonin production normally increases at night and blood pressure
is correspondingly reduced. In people with high blood pressure
the nighttime production of melatonin usually reduces blood
pressure even more dramatically than it does in healthy people.
However some individuals with high blood pressure do not experience
this increase in melatonin production; their blood pressure
remains high during the night, and they have significantly shorter
life-spans.
Melatonin supplementation at 2 mg taken 2 hours before bedtime has been
found to benefit these latter individuals.
Glaucoma
Glaucoma is a neurodegenerative disease, often associated
with raised intraocular pressure that damages the optic nerve.
Worldwide,
it is the second leading cause of blindness. The loss of vision
usually occurs gradually and is often only recognized when
the disease is quite advanced. Once lost, the damaged visual
field can never be recovered.
Melatonin and other substances linked to the nervous system
that innervates the eye are emerging as interesting candidates
for preventing glaucoma, or for treating it as soon as it is
recognized.
Conclusion
Is melatonin useful for the conditions and purposes
mentioned above? We aren’t allowed to tell you, so you should take a
look
at some of the references cited here, and then decide for
yourself.
References
[1] Melatonin Wikipedia
website
[2] Exogenous melatonin
for sleep problems in individuals with intellectual disability: a
meta-analysis. Dev Med Child Neurol. 2009 May;
51(5):340-9 Braam W, Smits MG, Didden R, Korzilius H, Van Geijlswijk
IM, Curfs LM
[3] The effects of
melatonin on sleep-wake rhythm of daytime haemodialysis patients: a
randomized, placebo-controlled, cross-over
study (EMSCAP study). Br J Clin Pharmacol.
2009 Jan; 67(1):68-75 Koch BC, Nagtegaal JE, Hagen EC, van der
Westerlaken MM, Boringa JB, Kerkhof GA, Ter Wee PM
[4] Effect of melatonin
administration on sleep, behavioral disorders and hypnotic drug
discontinuation in the elderly: a randomized,
double-blind, placebo-controlled study. Aging
Clin Exp Res. 2009 Feb; 21(1):38-42 Garzón C, Guerrero JM, Aramburu
O, Guzmán T
[5] Melatonin for chronic
insomnia in Angelman syndrome: a randomized placebo-controlled trial. J Child Neurol. 2008 Jun; 23(6):649-54 Braam W, Didden
R, Smits MG, Curfs LM
[6] Long-term follow-up
of melatonin treatment in children with ADHD and chronic sleep onset
insomnia. J Pineal Res. 2009 Aug; 47(1):1-7 Hoebert
M, van der Heijden KB, van Geijlswijk IM, Smits MG
[7] Melatonin for the
prevention and treatment of jet lag. Cochrane Database
Syst Rev. 2002; (2):CD001520 Herxheimer A, Petrie KJ
[8] Melatonin improves
memory acquisition under stress independent of stress hormone release. Psychopharmacology (Berl). 2009 Mar; 202(4):663-72
Rimmele U, Spillmann M, Bärtschi C, Wolf OT, Weber CS, Ehlert U, Wirtz
PH
[9] New treatments for
ocular hypertension. Auton Neurosci. 2009 May 11;
147(1-2):14-9 Mediero A, Alarma-Estrany P, Pintor J
[10] Melatonin as a
potential antihypertensive treatment. J Pineal Res. 2007
Apr; 42(4):319-22 Simko F, Paulis L
[11] The circadian
melatonin rhythm and its modulation: possible impact on hypertension. J Hypertens. 2009 Aug; 27 Suppl 6:S17-20 Reiter RJ, Tan
DX, Korkmaz A
[12] Melatonin to prevent
migraine or tension-type headache in children. Neurol
Sci. 2008 Sep; 29(4):285-7 Miano S, Parisi P, Pelliccia A, Luchetti
A, Paolino MC, Villa MP
[13] Cluster headache:
evidence for a disorder of circadian rhythm and hypothalamic function. Can J Neurol Sci. 2002 Feb; 29(1):33-40 Pringsheim T
[14] Melatonin:
an established antioxidant worthy of use in clinical trials. Mol Med. 2009 Jan-Feb; 15(1-2):43-50 Korkmaz A, Reiter
RJ, Topal T, Manchester LC, Oter S, Tan DX
[15] Melatonin: a hormone
that modulates pain. Life Sci. 2009 Apr 10;
84(15-16):489-98 Ambriz-Tututi M, Rocha-González HI, Cruz SL,
Granados-Soto V
[16] Melatonin and
reproduction revisited. Biol Reprod. 2009 Sep;
81(3):445-56 Reiter RJ, Tan DX, Manchester LC, Paredes SD, Mayo JC,
Sainz RM
[17] Melatonin for the
treatment of gastroesophageal reflux disease. Altern Ther
Health Med. 2008 Jul-Aug; 14(4):54-8 Werbach MR
[18] Melatonin in
diseases of the oral cavity. Oral Dis. 2009 Aug 4;
Gómez-Moreno G, Guardia J, Ferrera MJ, Cutando A, Reiter RJ
[19] Effect of oral
melatonin on the procoagulant response to acute psychosocial stress in
healthy men: a randomized placebo-controlled
study. J Pineal Res. 2008 May; 44(4):358-65
Wirtz PH, Bärtschi C, Spillmann M, Ehlert U, von Känel R
[20] Therapeutic
potential of melatonin in traumatic central nervous system injury. J Pineal Res. 2009 Sep; 47(2):134-42 Samantaray S, Das
A, Thakore NP, Matzelle DD, Reiter RJ, Ray SK, Banik NL
[21] Role of melatonin in
neurodegenerative diseases. Neurotox Res. 2005;
7(4):293-318 Srinivasan V, Pandi-Perumal SR, Maestroni GJ, Esquifino
AI, Hardeland R, Cardinali DP
[22] Clinical aspects of
melatonin. Saudi Med J. 2008 Nov; 29(11):1537-47
Reiter RJ, Korkmaz A
[23] Melatonin reduces
oxidative/nitrosative stress due to drugs, toxins, metals, and
herbicides. Neuro Endocrinol Lett. 2008 Oct; 29(5):609-13
Reiter RJ, Korkmaz A, Paredes SD, Manchester LC, Tan DX
[24] [Liberation of growth
hormone and melanocyte-stimulating hormone in natural and
melatonin-induced human sleep (author's translation)] Arzneimittelforschung.
1976; 26(6):1076-8 Cramer H, Böhme W, Kendel K, Donnadieu M
[25] Melatonin for
Treatment of Sleep Disorders U.S. Dept. of Health and
Human Services website, Evidence Report/Technology Assessment: Number
108
[26] Melatonin:
The Myths and Facts Vanderbilt University website
Courtney Ratzburg
[27] Potential
therapeutic use of melatonin in migraine and other headache disorders. Expert Opin Investig Drugs. 2006 Apr; 15(4):367-75
Peres MF, Masruha MR, Zukerman E, Moreira-Filho CA, Cavalheiro EA
[28] What
is "Brain-Based Learning"? Brain Connection website
Lisa Chipongian
[29] Melatonin reduces
night blood pressure in patients with nocturnal hypertension. Am J Med. 2006 Oct; 119(10):898-902 Grossman E, Laudon
M, Yalcin R, Zengil H, Peleg E, Sharabi Y, Kamari Y, Shen-Orr Z, Zisapel
N