SAD is triggered when the production of mood-influencing brain chemicals decreases along with the amount of sunshine during the fall and winter months. When seratonin production falls, it may affect sleep, appetite, mood and concentration. Sheila Marcus, M.D., is a clinical assistant professor and director of the Division of Outpatient Psychiatry. And of the converse - the negative impact of a gray, gloomy day. Another negative is weight gain, ranging from a few pounds to a significant amount.
Many individuals find themselves craving carbohydrates and sweets, especially chocolate.
The negative impact of this disorder is not to be underestimated. If left untreated, SAD may lead to problems on the job, difficulty with relationships, and strains on marriage and relationships with children and other family members, says Marcus. In the extreme, but rare case, suicide is the end result. For those who can't afford the time or money for a trip to Florida or the Sun Belt, there are some helpful techniques. Individuals may find some relief from a sunbox or light box.