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What are the symptoms of
insomnia? Sleep-onset insomnia refers to the inability to fall asleep
initially. Sleep-maintenance insomnia refers to the inability to
stay asleep, with one or more awakenings during the night.
How is it treated?
Behavioral or psychological counseling may be recommended
for people whose insomnia is due to poor sleep habits or emotional
disorders. People with insomnia are typically advised to avoid stimulants
such as caffeine (found in coffee, tea, and soda), diet pills, and
certain over-the-counter medications. Sleeping pills may be prescribed,
but these often become less effective over time and require higher
applications.
Dietary changes that may be helpful: Caffeine is
a stimulant. The effects of caffeine can last up to 20 hoursso some
people will have disturbed sleep patterns even when their last cup
of coffee was in the morning. Besides regular coffee, black tea,
green tea, cocoa, chocolate, some soft drinks, and many over-the-counter
pharmaceuticals also contain caffeine.
Doctors will sometimes recommend eating a high-carbohydrate
food before bedtime, such as a slice of bread or some crackers.
Eating carbohydrates can significantly increase levels of a neurotransmitter
(chemical messenger) called serotonin, which is known to reduce
anxiety and promote sleep.
Food allergy may also contribute to insomnia. In
a trial involving eight infants, chronic insomnia was traced to
an allergy to cow’s milk. Avoidance of milk resulted in a normalization
of sleep patterns.
Lifestyle changes that may be helpful: A steady
sleeping and eating schedule combined with caffeine avoidance and
counseling sessions using behavioral therapy has reduced insomnia
for some people, as has listening to relaxation tapes.
The effect of exercise on sleep has not been well
studied. However, some healthcare practitioners recommend daily
exercise as a way to reduce stress, which in turn can help with
insomnia.
A naturopathic therapy for insomnia is take a 15-
to 20-minute hot Epsom-salts bath before bedtime. One or two cups
of Epsom salts (magnesium sulfate) in a hot bath are thought to
act as a muscle relaxant.
Smokers are more likely to have insomnia than nonsmokers.
As with many other health conditions, it is important for people
with insomnia to quit smoking.
Nutritional supplements that may be helpful: Melatonin
is a natural hormone that regulates the human biological clock.
The body produces less melatonin with advancing age, which may explain
why elderly people often have difficulty sleeping and why melatonin
supplements improve sleep in the elderly.8
Middle-aged adults (average age, 54 years) with
insomnia also have lower melatonin levels, compared with people
of the same age without insomnia. However, there is not much research
on the use of melatonin for sleep problems in middle-aged people.
Double-blind trials have shown that melatonin facilitates
sleep in young adults without insomnia, but not in young people
who suffer from insomnia. However, one trial found that children
with sleep disturbances stemming from school phobia had improved
sleep after taking 1 mg of melatonin per night for one week, then
5 mg per night for one week, then 10 mg per night for a third week.
The results of one double-blind trial also indicate
that a controlled release melatonin supplement providing 2 mg per
day improves sleep quality in people with schizophrenia.
Normally, the body makes melatonin for several
hours per night—an effect best duplicated with controlled-release
supplements. Trials using timed-release melatonin for insomnia have
reported good results. Many doctors suggest taking 0.5 to 3 mg of
melatonin one and a half to two hours before bedtime. However, because
melatonin is a potent hormone, the long-term effects of which are
unknown, it should be taken only with the supervision of a doctor.
The amino acid, L-tryptophan, has been used successfully
for people with insomnia, presumably because it is converted to
the chemical messenger, serotonin. According to one preliminary
trial, L-tryptophan supplementation was 100% effective at promoting
sleep in people who awaken between three to six times per night,
but not effective at all for people who only awaken once or twice,
nor in people who doze on and off throughout the night in a state
blurred between sleep and wakefulness. However, L-tryptophan is
no longer available over the counter in the United States. A related
compound that occurs naturally in the body, 5-Hydroxytryptophan
(5-HTP), is also converted into serotonin and might, therefore,
be helpful for insomnia. In a double-blind trial of people without
insomnia, supplementation with 5-HTP (200 mg at 9:15 p.m. and 400
mg at 11:15 p.m.) increased rapid-eye-movement (REM) sleep, presumably
indicating improved sleep quality. In a preliminary trial of people
with fibromyalgia, supplementing with 100 mg of 5-HTP three times
a day improved sleep quality. However, additional research is needed
to determine whether 5-HTP is safe and effective for people with
insomnia.
Some people have difficulty sleeping because of
a problem known as period limb movements during sleep (PLMS) or
another condition called restless legs syndrome (RLS). In a preliminary
trial, people with PLMS or RLS who suffered from insomnia had a
significant improvement in sleep efficiency after supplementing
with magnesium (about 300 mg each evening for four to six weeks).
In two small preliminary trials, people with insomnia
resulting from disorders of the sleep-wake rhythm improved after
supplementing with vitamin B12 (1,500 to 3,000 mcg per day).
Are there any side effects or interactions?
Herbs that may be helpful: Herbal remedies have been used safely
for centuries for insomnia. In modern herbal medicine, the leading
herb for insomnia is valerian. Valerian root makes getting to sleep
easier and increases deep sleep and dreaming. Valerian does not
cause a morning “hangover,” a side effect common to prescription
sleep drugs in some people. A double-blind trial found that valerian
extract (600 mg 30 minutes before bedtime for 28 days) is comparable
in efficacy to oxazepam (Serax®), a commonly prescribed drug
for insomnia.In a separate double-blind trial, the same amount of
valerian extract was found to improve subjective assessments of
sleep quality and certain aspects of brain function during sleep
as well. A concentrated (4–5:1) valerian root supplement in the
amount of 300–600 mg can be taken 30 minutes before bedtime. Alternately,
2 to 3 grams of the dried root in a capsule or 5 ml tincture can
be taken 30 minutes before bedtime.
A combination of valerian and lemon balm has been
tested for improving sleep. A small preliminary trial compared the
effect of valerian root extract (320 mg at bedtime) and an extract
of lemon balm (Melissa officinalis) with that of the sleeping drug
triazolam (Halcion®). The effectiveness of the herbal combination
was similar to that of Halcion, but only the Halcion group felt
hung over and had trouble concentrating the next day. A double-blind
trial found that a combination of valerian and lemon balm, taken
over a two-week period, was effective in improving quality of sleep.
Another double-blind trial found a combination
of 360 mg valerian and 240 mg lemon balm taken before bed improved
reported sleep quality in one-third of the participants.
Combining valerian root with other mildly sedating
herbs is common both in Europe and the United States. Chamomile,
hops, passion flower, lemon balm, American scullcap, and catnip
are commonly recommended by doctors. These herbs can also be used
alone as mild sedatives for those suffering from insomnia or nervous
exhaustion. Chamomile is a particularly good choice for younger
children whose insomnia may be related to gastrointestinal upset.
Hops and lemon balm are approved by the German government for relieving
sleep disturbances.
Corydalis contains several ingredients, one of
which has been shown to influence the nervous system, providing
pain relief and promoting relaxation. People with insomnia were
able to fall sleep more easily after taking 100–200 mg per day of
a corydalis extract (called dl-tetrahydropalmatine, or DHP), according
to a preliminary report. People taking the extract reported no drug
hangover symptoms, such as dizziness or vertigo.
The volatile oil of lavender contains many medicinal
components, including perillyl alcohol, linalool, and geraniol.
The aroma of the oil is known to be calming and thus may be helpful
in some cases of insomnia. One trial of elderly people with sleeping
troubles found that inhaling lavender oil was as effective as tranquilizers.
Teas made from lavender flowers or from the oil (1–4 drops) are
approved for internal use by the German Commission E for people
with insomnia. Internal use of essential oils can be dangerous and
should be done only with the supervision of a trained herbalist
or healthcare professional.
Other integrative approaches that may be
helpful: Insomnia can be triggered by psychological stress. Dealing
with stress, through counseling or other techniques, may be the
key to a better night’s rest. Many trials have shown that psychological
intervention can be helpful for insomnia. A combined program of
counseling, sleep restriction methods (i.e., the only time spent
in bed is when sleeping), and control of stimuli that might interfere
with sleep, significantly increased sleep time in a group of people
with insomnia.
Acupuncture may be helpful for insomnia, possibly by increasing
production of calming neurotransmitters such as serotonin and other
substances. A preliminary trial found one acupuncture treatment
daily for seven to ten days resulted in complete recovery of normal
sleep in 59% of patients and partial recovery in 21%. A controlled
trial treated patients with either acupuncture or fake acupuncture
(insertion of needles at non-acupuncture points). The patients receiving
true acupuncture had significant improvements in a laboratory measure
of sleep quality compared to the placebo group. The treatment of
insomnia with auricular (ear) acupuncture may provide similar benefits
to people with insomnia, according to a preliminary trial. However,
double-blind trials are necessary to conclusively determine the
value of acupuncture in treating insomnia.
More questions? Ask
the Doctor
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