Not
many people look forward in great anticipation to the cold days of
winter. The lack of exposure to regular amounts of healthy sunshine
could trigger seasonal affective disorder (SAD). Experts cited that
this condition affects one out of every five Americans each winter.
Rather than relying on drugs like Prozac or Zoloft to treat this condition,
a new study revealed that a short half-hour session sitting next to
a light-emitting box produces the most effective results in the treatment
of SAD.
While 14 percent of Americans have reported
experiencing mild cases of this condition, 6 percent to 7 percent
stated they experience the most extreme symptoms of SAD, which could
include:
- Clinical depression
- Overeating
- Excess sleep
- Heightened sensitivity to pain
- Social withdrawal
- Significant weight gain (averaging nearly 40 pounds each season)
Researchers found that premenopausal women were more inclined to
develop SAD symptoms over men due to the female hormones estrogen
and progesterone.
The Positive Effects of Light Treatment
A study of 140 women that took place over five successive winters
compared two different kinds of treatments for SAD: 30 minutes a
day of exposure to light-emitting boxes and using room ionizers,
which are thought to help SAD symptoms by increasing levels of negatively
charged particles circulating in the air. Although the air ionizers
showed some positive effects, the light boxes produced the most
promising results.
Studies have shown that during the winter months, serotonin levels
in the brain are lower than they are in the summer months. For this
reason many doctors resort to prescribing SSRI's, which work by
adjusting serotonin levels.
However, experts say that using light boxes are not only the safer
alternative to treating this condition but also are much cheaper
than prescription drugs in the long term. As a matter of fact, using
a standard light box for a period of five years costs around $60
per year compared to a prescription for Prozac or other SSRI, which
costs about $300 to $500 per year.
Another form of light box called "dawn stimulator" is
attached to a bright light in the bedroom and works by causing the
light to slowly increase in intensity during the early morning hours,
similar to how it would on a spring day.
SAD experts agree that light boxes are the safe and most effective
form of treatment for seasonal depression.
Forbes
January 9, 2005
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