A mood disorder is an emotional state or mood characterized by inconsistency or swings in expressing emotions such as sadness, irritability, aggressivity, impulsivity, and excessive happiness. In the US, it was estimated that about 21.4 % of adults would experience a mood disorder in their life [1]. In the UK, it was estimated that 1…
Seasonal affective disorder (SAD) is a type of seasonal depression characterized by major depressive episodes in the fall/winter and remissions in spring/summer. The symptoms include persistent low mood, lack of interest, irritability, lack of energy, irritability, longer hours of sleep, withdrawal from social situations, and craving for carbohydrates. It is estimated that 1-10% of the…
