أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Seasonal affective disorder (SAD), also known as winter depression, winter blues, summer depression, summertime sadness, orseasonal depression, is a mood disordersubset in which people who have normal mental health throughout most of the year experience depressive symptoms in the winter or summer.