Summertime Blues: Understanding Seasonal Affective Disorder

woman sitting on chair looking outside window

What is seasonal affective disorder? Seasonal Affective Disorder (SAD) is a type of depression that occurs seasonally, usually in the winter, due to absence of sunlight that affects our melatonin and serotonin levels. Coined in the 1980’s at the National Institute of Mental Health by a chap called Norman E Rosenthal  and his colleagues, SAD […]