article_snippet: Up to one in four Britons suffer from seasonal affective disorder, with seven per cent of the population having full-blown SAD.
article_snippet: full-blown SAD is also know as the 'winter blues' as victims feel victims symptoms begin with the turn of the season into Autumn.
article_snippet: full-blown SAD is triggered by a biochemical imbalance in the hypothalamus, the part of the brain that rules our body's main functions, such as sleep, appetite, sex drive, temperature, mood and activity.
article_snippet: In recent years, however, there has been growing evidence that there are many ways to reduce the chances of developing SAD or even to prevent it. '
article_snippet: Mr Buscha's did find significant evidence of seasonal affective disorder (Sad) whereby individuals become markedly less happy during the winter because of a lack of light.
article_snippet: SAD is also know as the 'winter blues' as victims feel victims symptoms begin with the turn of the season into Autumn.
article_snippet: There is quite strong evidence that we all feel a bit unhappier in the winter.'