Seasonal affective disorder (SAD), is thought to occur in late autumn and winter season and is caused by the seasonal variations of light or the lack of it.

‘The Seasonal Affective Disorder (SAD) could be just a myth as there is no proof of the existence of any such condition.’

Researchers found no strong evidence of depression related to season and if the seasonal pattern could lead to depression, those cases should be very rare. People who responded to the survey in the winter months, when sunlight exposure was low, had no greater levels of depressive symptoms than those who responded to the survey at other time.




Steven LoBello, lead researcher of the study, said. “I certainly did not argue that this means SAD does not exist. However, only a minority of depression cases are actually SAD.”
Source-Medindia