11/12/2025
Seasonal Affective Disorder (SAD) is a type of depression that follows a predictable seasonal pattern, most commonly occurring during the fall and winter months when daylight hours are shorter. People with SAD experience symptoms that go beyond typical “winter blues,” including persistent low mood, loss of interest in activities, changes in sleep patterns (often sleeping more than usual), fatigue, difficulty concentrating, and sometimes changes in appetite or weight.
The condition is thought to be linked to reduced exposure to sunlight, which can disrupt the body’s internal clock and affect levels of serotonin and melatonin—neurotransmitters that regulate mood and sleep. While SAD can be challenging, it’s a recognized and treatable condition.
Treatment options include light therapy (using a specialized bright light box), psychotherapy, medication, and lifestyle changes like increasing outdoor time during daylight hours, maintaining regular exercise, and ensuring good sleep hygiene. If you suspect you might have SAD, it’s worth speaking with a healthcare provider who can help determine the best approach for your specific situation.
