For those of us in the northern hemisphere this is the time
of the year when the days are at their shortest. And while many of us experience a change in
mood tied to the shorter days and colder weather for some people, this time of
year is one of profound unhappiness.
According to the National Alliance on Mental Illness,
Seasonal Affective Disorder (SAD) “is characterized by recurrent episodes of
depression – usually in late fall and winter – alternating with periods of normal
or high mood the rest of the year.” SAD
usually starts in October or November and people who experience it often don’t
feel better until spring. (It should be
noted that some people have “reverse SAD” and experience symptoms in the spring
and summer.)
Like other forms of depression, SAD, is more common in women
than in men. It also is more common (not
surprisingly) in parts of the world that have long winter nights. The symptoms are also similar to other forms
of depression. There is no specific test
for SAD so your health care provider will ask about your history of symptoms,
particularly if they vary with the time of year. Treatment will be the same as other types of
depression. It is important if you
experience SAD to be exposed to light. This can involve being outside during
daylight hours and light therapy. More information about SAD and therapy
(including the risks and benefits of light therapy can be found here.
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