Many people in this hustle-and-bustle world
take sleep for granted. They believe that
losing an hour here or two hours there is
really nothing to worry about. In fact, many
in our society think sleep is something they
can almost live without. Unfortunately, these
people don’t realize that over time, they are
building up a “sleep debt” that rarely gets
repaid. This can be associated with significant
health consequences and could ultimately
cost them their life.
Studies show poor sleep can lead to a
variety of different health problems:
- Hypertension
- Heart disease
- Depression
- Diabetes
- Stroke
- Impotence
- Weight gain
- Sudden death.
Dr. Jonathan Schwartz, the medical director
of the
INTEGRIS Sleep Disorders Center
of Oklahoma, says to understand the correlation
between sleep and health, one must first
understand sleep.
Understanding sleep cycles
There are two different types of sleep:
rapid-eye movement or REM sleep, when
most dreaming occurs, and non-REM sleep,
in which a healthy sleeper spends the
majority of the night.
“During non-REM sleep a person’s heart rate,
breathing and blood pressure levels drop –
giving the entire body, including the heart,
a rest. During REM sleep, those levels can
fluctuate, since this is a lighter stage of sleep in
which a person is on the verge of wakefulness,”
says Dr. Schwartz. If a person does wake up
even just briefly, he explains, the heart rate and
blood pressure can climb as his or her heart
and cardiovascular system are stimulated.
People who suffer from certain sleep
disorders, like obstructive sleep apnea (OSA),
can experience this type of sleep disturbance
hundreds of times each night without ever
remembering it in the morning. Read on to
learn why.
Understanding the role of
sleep disorders in health
The muscles that contract to open the
throat and upper breathing passages tend
to relax during sleep. This relaxation leads
to a slight narrowing of the throat. That isn’t
a problem for most people, but for those
with OSA, this narrowing of the breathing
passage makes breathing difficult and
sends a warning signal to the
brain. “The brain
arouses and stimulates the throat muscles
to become active, and normal breathing is
restored – at least until the person falls back
to sleep again. Then the vicious cycle starts
again,” explains Dr. Schwartz. The repetitive
arousals, as well as a lack of oxygen coupled
with temporary increases in heart rate and
blood pressure, puts stress on the heart. This
can eventually lead to hypertension, as well
as an increased risk for heart attacks, heart
failure and stroke – conditions that are all
potentially life-threatening.
A bad night of sleep, a full day
of problems
Sufferers of OSA and other sleep disorders,
such as restless legs syndrome or periodic
limb movements disorder and insomnia, may
find it difficult to function during the day.
Dr. Schwartz says, “Since they never really get
a full night’s rest, they are tired, fatigued or
sleepy during the day. Poor quality sleep also
is associated with a four times greater risk
for depression, as well as an increased risk
for weight gain and obesity. Improving sleep
quality and quantity can significantly improve
mood as well as overall health.”
 | 
Jonathan Schwartz, M.D.
Board Certified
Sleep Specialist
and Medical
Director,
INTEGRIS Sleep
Disorders Center
 |
Dr. Schwartz also points out that there is
a delicate balance between good sleep habits
and leading a healthy life. He believes recognizing
the relationship between the two is
a step in the right direction toward a solution.
He recommends the following for a better
night’s sleep:
- Maintain regular bed and wake times,
even on days off from work and on
weekends.
- Try to sleep only when you
are drowsy.
- If you are not drowsy and
are unable to fall asleep for
about 20 minutes, leave
your bedroom and start
a quiet activity
somewhere
else. Do not let yourself fall asleep outside the
bedroom. Return to bed only when you are
sleepy. Repeat this process as often as necessary
throughout the night.
- Use your bedroom only for sleep, illness
and intimacy.
- If you have insomnia, avoid napping during
the daytime. This improves your chances
of sleeping at night. If you must nap, try to
keep it short (less than one hour). Never
take a nap after 3 p.m.
- Make your bedroom quiet, dark and cool.
- Don’t eat a large meal, smoke or drink
alcohol or caffeine near bedtime.
- Leave at least two hours before bedtime for
your heart rate to slow down after exercise.
If a person alters his or her lifestyle to reflect
these suggestions and the problem still persists
for more than a month, it may be time
to seek professional help. Dr. Schwartz says
there are medications available now that are
better than ever before. When used appropriately,
medication significantly can improve
sleep and wakefulness.
There also are better treatments available
for snoring and sleep apnea, which not only
improve sleep quality but also may improve
coexistent conditions, such as hypertension,
heart disease, diabetes and depression.
Dr. Schwartz says it’s just a matter of finding
the right option for each individual.
He tells his patients to rest assured because
“better sleep is achievable.” With proper
treatment, anyone should be able to wake up
feeling rested and refreshed, be awake and
alert during the day, and be ready to take
on the world.
The Sleep Disorders Center of Oklahoma has been accredited by the American Academy
of Sleep Medicine since 1994. The center remains active in both clinical sleep medicine
and research. There are three convenient locations at INTEGRIS Baptist Medical Center,
INTEGRIS Southwest Medical Center and INTEGRIS Canadian Valley Regional Hospital.