As the days grow shorter and colder on Cape Cod, many people notice a dip in their mood and energy. For some, this is more than the ordinary “winter blues.” Seasonal affective disorder (SAD) is a form of depression that follows a seasonal pattern, most often arriving in late fall and lifting in spring. Understanding the signs can help you take care of your mental health through the darker months.

What Is Seasonal Affective Disorder?

Seasonal affective disorder is a type of depression tied to the changing seasons. It is thought to be linked to reduced sunlight, which can disrupt your internal body clock, lower serotonin levels, and affect melatonin and sleep. According to the National Institute of Mental Health, SAD is a recognized condition that responds well to treatment, not simply a mood you have to push through.

Signs and Symptoms of SAD

Seasonal affective disorder shares many symptoms with other forms of depression, but they appear and ease at the same times each year. Common signs include:

• Persistent low mood or sadness most of the day
• Low energy and feeling sluggish or heavy
• Sleeping more than usual yet still feeling tired
• Craving carbohydrates and gaining weight
• Loss of interest in activities you usually enjoy
• Difficulty concentrating
• Withdrawing from friends and social plans

If these symptoms sound familiar year-round rather than seasonally, it may help to read about the broader signs of depression and when to seek therapy.

Why Winter Can Feel Harder in New England

New England sees dramatic seasonal shifts, with short days, long nights, and stretches of gray weather. Research suggests that more than one in ten New England residents experience seasonal mood changes, and the effect tends to be stronger the farther north you live. On Cape Cod, cooler temperatures and fewer daylight hours can make it harder to stay active and connected, which can deepen seasonal low moods.

Ways to Cope with Seasonal Affective Disorder

Small, consistent steps can make a meaningful difference:

• Maximize daylight: get outside in the morning and sit near windows when you can.
• Consider light therapy: a light box that mimics daylight can help many people with SAD.
• Keep moving: regular physical activity boosts mood and energy.
• Hold a routine: steady sleep and meal times support your body clock.
• Stay connected: reach out to friends and family even when you feel like withdrawing.

When to Seek Help for Seasonal Depression

If low mood lasts for weeks, interferes with daily life, or returns each year, professional support can help. Therapy, especially Cognitive Behavioral Therapy (CBT), is an effective treatment for seasonal affective disorder and can give you tools to manage symptoms before they take hold. A therapist can also help you tell the difference between SAD and other forms of depression.

Support for Seasonal Affective Disorder on Cape Cod

You do not have to wait out the winter alone. At Sandra Kelly Therapy, I help adults on Cape Cod and across Massachusetts navigate seasonal depression with warmth and practical support, in person and online. If the darker months are weighing on you, reach out for a free consultation and start feeling more like yourself.