Seasonal Affective Disorder

Seasonal Affective Disorder ( S.A.D) 

Seasonal Affective Disorder month is in December. It is a condition that causes significant mood changes in response to the changing seasons, typically during late fall and winter. 

On the NHS website it lists the symptoms as  

• a persistent low mood 

• a loss of pleasure or interest in normal everyday activities 

• feeling irritable 

• feelings of despair, guilt and worthlessness 

• low self-esteem 

• tearfulness 

• feeling stressed or anxious 

• a reduced sex drive 

• becoming less sociable 

SAD is thought to be related to changes in light exposure which can affect the body’s internal clock and the serotonin and melatonin levels. 

Serotonin is a brain chemical that affects mood, appetite and sleep. Lower levels are linked to depression. Melatonin helps regulate sleep-wake cycles and circadian rhythms. Treatment can include psychotherapy and medications.