Understanding Seasonal Affective Disorder: What It Is and How to Cope

As the days grow shorter and colder, many people notice their mood and energy start to dip. For some, these seasonal changes bring more than just the “winter blues.” Seasonal Affective Disorder (SAD) is a type of depression that follows a seasonal pattern—most often appearing in late fall or winter and easing in spring. Understanding the signs of SAD and knowing how to respond can help you or a loved one navigate the darker months with greater resilience.

What Is Seasonal Affective Disorder?

SAD is a form of depression that follows a seasonal pattern—winter-pattern and summer-pattern. While more research is needed to determine the cause, experts believe that reduced exposure to sunlight can disrupt the body’s biological clock (circadian rhythm) and affect levels of serotonin and melatonin, chemicals that regulate mood and sleep. Though most common in northern climates with long winters, SAD can affect anyone and may recur annually.

Common Symptoms

SAD symptoms are similar to other forms of depression but tend to follow a seasonal pattern. They can range from mild to severe and may include:

Persistent low mood or feelings of sadness
Loss of interest in activities once enjoyed
Low energy or fatigue
Feelings of irritability or restlessness
Increased need for sleep or trouble waking up
Changes in appetite—often craving carbohydrates and sweets
Difficulty concentrating
Feelings of hopelessness or worthlessness

While winter-pattern SAD is most common, some people experience a summer-pattern, which can involve insomnia, poor appetite, anxiety, or restlessness.

Strategies for Coping with SAD

If you suspect you or a loved one is experiencing SAD, there are several approaches that can help:

Exposure to sunlight is one of the best tools for coping with seasonal affective disorder.

Maximize Natural Light

Spend time outdoors during daylight, even on cloudy days (especially helpful in the mornings)
Arrange your home or workspace to receive as much sunlight as possible

Light box therapy is an alternative to natural light exposure for the treatment of seasonal affective disorder.

Consider Light Therapy

A “light box” that emits bright, full-spectrum light can help reset circadian rhythms
Use only under guidance from a healthcare provider, as timing and intensity matter

Exercise can boost mood to improve symptoms of depression and seasonal affective disorder.

Stay Active

Regular exercise can boost serotonin levels and mood
Gentle activities like walking or yoga can be just as beneficial as more vigorous workouts

Routines calm the brain, which is beneficial for treating seasonal affective disorder.

Maintain a Consistent Routine

Aim for regular sleep and meal times
Break tasks into manageable steps to reduce overwhelm

Therapy with a trained professional can be very effective in alleviating symptoms of seasonal affective disorder.

Seek Professional Support

Cognitive-behavioral therapy (CBT) and, in some cases, medication can be very effective.
Don’t wait until symptoms become severe—early action can prevent a deeper episode.

If you have a history of SAD, it may be helpful to start the aforementioned treatments prior to the onset of symptoms to help reduce or prevent symptoms altogether.

Our Professional Support

At Aucoin & Associates, we understand how challenging seasonal changes can be. Our licensed mental health professionals provide comprehensive assessments and evidence-based treatments, including cognitive-behavioral therapy tailored for SAD. We also offer guidance on lifestyle changes and stress management techniques to help you feel more balanced throughout the winter.

You don’t have to face the darker months alone. With the right support and strategies, it’s possible to lift your mood, regain energy, and approach each season with greater well-being and confidence.