Winter is Coming: Seasonal Depression

What Is Seasonal Depression? Signs, Causes, and How to Cope

As the days grow shorter and darker, many people notice a shift in their energy, mood, and motivation. For some, this seasonal change isn’t just a case of the "winter blues" — it may be a form of depression known as Seasonal Affective Disorder (SAD).

🌥️ What Is Seasonal Affective Disorder?

Seasonal Affective Disorder is a type of depression that follows a seasonal pattern, most commonly appearing in the late fall and winter months when sunlight exposure decreases.

🧠 What Causes Seasonal Depression?

While the exact causes aren’t fully understood, contributing factors include:

• Reduced sunlight exposure, which can disrupt your circadian rhythm

• Lower serotonin levels, affecting mood regulation

• Changes in melatonin, which impact sleep and mood

• Vitamin D deficiency, more common during Canadian winters

🔍 Common Symptoms of SAD:

• Persistent low mood or irritability

• Fatigue or oversleeping

• Changes in appetite (especially carb cravings)

• Loss of interest in activities

• Difficulty concentrating

• Social withdrawal

If these symptoms occur around the same time each year and impact your functioning, it may be more than just seasonal stress.

🌞 How to Treat and Manage Seasonal Depression

The good news? Seasonal depression is treatable. Options include:

• Light therapy: Using a special lamp to mimic natural sunlight

• Psychotherapy: Approaches like EMDR, ACT, and CPT can help process underlying issues and build resilience

• Lifestyle changes: Prioritizing sleep, movement, and social connection

• Medication: For some, antidepressants can be part of an effective treatment plan

• Vitamin D supplements: May help if you're deficient

📍 You’re Not Alone

Seasonal depression affects thousands of people across Canada every year. At Mend Psychology in Bridgeland, Calgary, our team offers personalized, trauma-informed care to help you feel more like yourself again — no matter the season.