Understanding Seasonal Depression: Why Your Mood Changes During Winter — And How to Cope

(SAD) a form of depression that occurs during specific seasons, most commonly in late fall and winter.

At JC Health Group, we aim to raise awareness about this often-overlooked condition while offering effective, evidence-based care for those affected.

What Is Seasonal Depression (Seasonal Affective Disorder)?

Seasonal Affective Disorder is a recurrent type of depression linked to seasonal patterns.
It often begins in November or December and may last until early spring.

Common Symptoms Include:

• Persistent sadness or low mood

• Fatigue and low energy

• Loss of interest in usual activities

• Increased sleep but still feeling tired

• Overeating or carb cravings

• Difficulty concentrating

• Withdrawal from family or social activities

If these symptoms disrupt your daily functioning, it may be more than simple winter fatigue — it may be Seasonal Depression.

The good news: it’s treatable.

Why Seasonal Depression Intensifies During the Holidays

December brings unique emotional triggers that can amplify seasonal mood changes:

Reduced Sunlight

Shorter days affect serotonin levels and disrupt the body’s internal clock, often lowering energy and mood.

Holiday Stress & Expectations

Gift-giving, gatherings, and financial strain can create pressure and emotional overwhelm.

Loneliness or Grief

Not everyone has family or positive holiday memories. The season can highlight feelings of loss or isolation.

Fatigue & Routine Disruption

Holiday events, late nights, and stress can interrupt sleep—worsening depressive symptoms.

Cold Weather & Limited Activity

Less outdoor movement decreases endorphins, contributing to low mood.

The combination of seasonal factors and holiday demands can significantly impact emotional wellness—but support and treatment are available.