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Insomnia and problems sleeping? Try exercise.
While a few nights of lost sleep may be merely a
nuisance, cumulative sleep loss results in a variety of problems.
"At this point, I'm willing to try anything -- even
exercise!" you exclaim. "My doctor said
regular exercise might help me sleep better. My sleeping problem began about three
months ago when things were crazy at work. The company went through
a major reorganization, and I dealt with a lot of stress. I started
waking up in the middle of the night, unable to get back to sleep
for an hour or two. It seems I have forgotten how to sleep! I wake
up in the morning exhausted. Can exercise help? And if so, what kind
of exercise is best?"
Sleeping problems have reached epidemic proportions in the U.S.,
with about one-third of the adult population reporting problems
sleeping within the past year. While a few nights of lost sleep may
be merely a nuisance, cumulative sleep loss results in a variety of
problems, such as poor judgment, increased risk of injury and
accidents, reduced productivity and depression. Canadian sleep
researcher Stanley Coren argues, "Going without sleep is as much of
a public and personal safety hazard as going to work drunk."2 Plenty
of deep, restorative sleep is essential for good health.
Treatment step 1: Medical clearance
While stress is the leading cause of short-term insomnia, it may
also be caused by a variety of illnesses, medications or by
lifestyle factors such as schedule or caffeine consumption. Clients
complaining of sleep problems or fatigue should consult their
healthcare providers to determine the causes of their insomnia, and
seek advice on the best course of treatment.
Step 2: Manage stress
If stress is determined to be the cause of insomnia, then stress
management must be part of the solution. Clients often feel better
once they confront the problems that trigger feelings of stress.
Clients can feel more relaxed and in control by participating in
stress-management workshops, individual or group counseling, or
simply acknowledging the sources of stress and devising a plan of
attack. Regular exercise is an essential stress-management technique
that helps people feel relaxed and revived.
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Step 3: Lifestyle modification
Clients who have ruled out underlying illness and medication
side-effects often experience improvement in their sleep quality
with changes in lifestyle factors. Encourage clients to take a
look at caffeine consumption. Reducing or eliminating caffeine
can have dramatic results. Similarly, reducing or eliminating
alcohol improves sleep quality for many people. While alcohol
may help people fall asleep, it usually produces a light,
restless sleep, and the individual often awakens suddenly during
the night, unable to sleep again.
Sleep comes more easily to people who follow a regular sleep
schedule and develop a pleasant bedtime routine. Creating a
dark, quiet and comfortable sleep environment helps as well,
even if darkness comes from eye covers and quiet from ear plugs.
Exercise and sleep well
Many people find that regular exercise improves sleep quality.1
Compare the side-effects to those listed on the bottle of
sleeping pills. For insomnia, daily (or almost daily) exercise
for at least 30 minutes is recommended. Sleep may not improve
for several days or even a few weeks, so be sure clients
understand that results may not be immediate. Urge them to
continue anyway; exercise will still do them a great deal of
good.
The best type, amount and timing of exercise for a client must
be determined by trial and error.3 Exercise may be prescribed
based on client preference and what types of exercise they have
access to. Exercise amount depends upon a client's fitness and
activity levels. Clients currently in moderately good condition,
who already exercise sporadically, may require greater exercise
intensity and duration to improve sleep quality. Obviously,
safety comes first. All clients should begin with an appropriate
exercise volume and increase gradually to avoid injury. |
What about timing? It was thought that exercise late in the
day would make falling asleep more difficult, and for some people this is
true. But studies find now that many people have no difficulty falling
asleep after evening exercise.3 Clients desperate for immediate results may
want to avoid evening exercise. However, late-day exercise is sometimes the
only option, and should not automatically be ruled out. Over time, each
client must experiment with what time of day works best, considering the
multitude of constraints that shape an exercise program.
Come into the light
Inadequate exposure to bright light has been linked to insomnia and
depression, and light therapy improves sleep quality and mood. Encourage
clients who rarely spend time outside to add outdoor time to their day.
Midday exposure is most intense, and is desirable during short winter days.
Some clients can make time for midday outdoor exercise. The combination of
exercise and daylight works synergistically to regulate the body's
sleep/wake cycle.
Avoid overtraining
While the right amount of exercise can improve sleep quality, overdoing it
and overtraining are characterized by insomnia. Some adults report trouble
sleeping after even one bout of overly intense exercise. (Sleep usually
returns to normal the following night.) Overtraining occurs over time, when
training is increased too quickly for the body to adapt. While elite
athletes are the most likely candidates for overtraining, overly exuberant
recreational exercisers can get carried away with their training programs,
too, especially if they are preparing for an event. For example, a marathon
requires a high volume of training.
Exercise is a good habit to form
It is worth noting that people who exercise regularly sometimes experience
sleeping problems -- when they are unable to exercise for several days.
Sleep quality usually returns when they get back into an exercise program.
While this may sound negative, the body needs daily exercise to function
normally, and if activity is missing, insomnia is a direct result. Exercise
helps keep people in balance, and functioning in top form.
REFERENCES
1. King, A.C., R.F. Oman, G.S. Brassington, et al. Moderate-intensity
exercise and self-rated quality of sleep in older adults: A randomized
controlled trial. Journal of the American Medical Association, 277 (1):
32-37, 1997.
2. Wheeler, D.L. Ending the sleep shortage. The Chronicle of Higher
Education, p.A10, August 9, 1996.
3. Youngstedt, S.D. Does exercise truly enhance sleep? Physician and
Sportsmedicine, 25(10): 72-82, 1997.
Barbara A. Brehm, Ed.D., is professor of exercise and sport
studies at Smith College, Northampton, Mass.
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