The winter blues seems to get inside some people affecting their moods as well as their days. Known as seasonal affective disorder (SAD), this form of depression affects about 1% to 2% of the population. Although it strikes all genders and ages, women are more likely to develop SAD than men, and young people are more likely to develop it than older people.
SAD seems to be triggered by decreased exposure to daylight. Typically, it arrives during the fall or winter months and subsides in the spring. Symptoms are similar to general depression and include lethargy, loss of interest in once-pleasurable activities, interpersonal problems, irritability, inability to concentrate, and changes in sleeping patterns, appetite, or both.
Experts don’t fully understand the cause of SAD, but leading theories place the blame on an out-of-sync body clock or on improper levels of either the hormone melatonin or the neurotransmitter serotonin.
Depression is more than a passing bout of sadness or dejection, or feeling down in the dumps. It can leave you feeling continuously burdened and can sap the joy out of once-pleasurable activities. Effective treatment can lighten your mood, strengthen your connections with loved ones, allow you to find satisfaction in interests and hobbies, and make you feel more like yourself again.