Understanding Seasonal Affective Disorder (SAD)
- Sayanti Bhattacharya MD
- Sep 18
- 2 min read
Updated: Oct 7
What is SAD?
SAD is a subtype of depression that has a seasonal pattern. People with SAD experience symptoms of depression, including persistent sadness or low mood, loss of interest in usual activities, and low energy. In addition, SAD frequently involves:
Oversleeping
Increased appetite (often craving carbohydrates)
Weight gain
Significant fatigue
Why Does SAD Happen?
The exact cause isn’t fully understood, but research points to a combination of factors:
Shorter days and fewer hours of sunlight: This can increase melatonin, the hormone that regulates sleep, leading to increased sleepiness and low energy.
Serotonin: A decrease in serotonin activity, a brain chemical that affects mood.
Sleep phase delay: Disruptions in your body’s internal clock (circadian rhythm) can delay bedtimes and wake-up times.
Who is at Risk?
SAD affects millions of people worldwide. Risk factors include:
Living far from the equator (less winter sunlight)
Women are more frequently affected
Personal or family history of depression
Age (commonly appears in young adults)

Treatment Options for SAD
The good news is that SAD is treatable. Common approaches include:
Light therapy: Using a special light box for 20–30 minutes daily in the morning can mimic sunlight and help regulate mood.
Medication: Antidepressants can be effective in managing SAD symptoms.
Psychotherapy: Cognitive-behavioral therapy (CBT) adapted for SAD helps people change negative thought patterns and develop coping strategies.
Lifestyle adjustments: Regular exercise, spending time outdoors, maintaining a consistent sleep schedule, and eating a balanced diet can all help.
When to Seek Help
If you notice persistent low mood, loss of interest, or difficulty functioning during specific seasons, it’s important to talk to a mental health professional. Early intervention can prevent symptoms from worsening and improve quality of life.
Living Mindfully with SAD
SAD is more than just feeling the winter blues. It's a real, treatable form of depression that affects millions of people worldwide. With awareness, support, and appropriate treatment, you can maintain your energy levels, mood, and motivation in any season.
Consider integrating mindfulness practices into your daily routine. Mindfulness can help you stay grounded and present, reducing feelings of anxiety and sadness. Simple techniques like deep breathing, meditation, or even gentle yoga can make a significant difference.
Conclusion
In conclusion, understanding Seasonal Affective Disorder is crucial. It allows you to recognize the signs and seek help when needed. Remember, you are not alone in this. Many people experience similar feelings during seasonal changes.
By taking proactive steps, you can manage your symptoms effectively. Whether through therapy, medication, or lifestyle changes, support is available.
Live mindfully and with intention.
Dr. Sayanti Bhattacharya MD, MS
Verve Psychiatry




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