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Seasonal Affective Disorder

Seasonal Affective Disorder: 10 SAD Treatments That Work

Ana GasconSarah Gupta, MD
Written by Ana Gascon | Reviewed by Sarah Gupta, MD
Updated on October 22, 2025

Key takeaways:

  • Seasonal affective disorder (SAD) is a type of depression that typically affects people in the fall and winter. 

  • Light therapy, medication, and mental health therapy are the best treatments for SAD. 

  • Other things can help with SAD, too, like exercise, mindfulness, and eating nutritious foods. 

If you feel blue during the fall and winter, you’re not alone. Many people have what’s called seasonal affective disorder (SAD) during the darker times of year. It’s sometimes also called “seasonal depression” or a “seasonal mood disorder.”

Seasonal depression is a type of major depression. The only difference is that SAD happens at certain times of year — usually during the fall and winter.

Symptoms include:

  • Feeling sad, empty, or hopeless

  • Sleep changes or fatigue

  • Loss of interest or pleasure in your normal activities

  • Poor concentration

  • Appetite changes

  • Suicidal thoughts

Thankfully, treatment can help. The main treatments for SAD are mental health therapy, antidepressant medications, and light therapy. But other strategies can help, too — like exercising, socializing, and taking good care of your mind and body. 

Let’s take a closer look at SAD treatment, so you have hope and a plan for when the “winter blues” strike.

Featuring Ben Michaelis, PhD, Jennifer L. Hartstein, PsyD, Khadijah Watkins, MD, MPH, FAPA, DFAACAPReviewed by Sarah Gupta, MD | January 31, 2025

1. Antidepressant medications for SAD

Antidepressant medications are a first-choice treatment for SAD. They can be used on their own, or in combination with mental health therapy and light therapy. These medications can potentially reduce symptoms and improve your mood over time. 

The most common medications for seasonal depression are:

Keep in mind that antidepressant medications often take 4 to 8 weeks to reach their full effect. This means that some people with SAD start taking medications before their symptoms usually begin, like in late summer or early fall. 

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2. Therapy for SAD

Therapy is also a first-choice treatment for SAD. Again, it can be helpful on its own. It can also be combined with medications and light therapy. 

There are many types of therapy, but cognitive behavioral therapy (CBT) is often recommended. There’s some evidence that it’s as effective as light therapy for treating SAD. There’s even a special type of CBT that’s designed to treat SAD, called CBT-SAD. 

In general, therapy can help you learn new coping strategies, such as how to replace negative thoughts with more positive or neutral ones. Therapy can also help you explore yourself, your relationships, and the world around you. The effects can be long-lasting, and may have benefits that continue to help you in future seasons. 

3. Light therapy for SAD

Light therapy is a proven treatment for SAD. It involves sitting in front of a special light box every day that imitates sunlight. This provides enough light to make up for the lack of sunlight in winter, which seems to boost mood and energy for some people. Light therapy may be especially helpful if the winters are dark and grey where you live. 

Though you can purchase a therapy light without a prescription, it’s best to talk to a healthcare professional first. Light therapy can sometimes have side effects, such as eye problems, sleep changes, and headaches. It might also be inappropriate for people with certain health conditions, like diabetes or bipolar disorder

4. Vitamin D

Your body makes vitamin D in response to sunlight. Many people have low levels of vitamin D, especially during the winter. There’s some evidence that vitamin D supplements might help with mood in the wintertime, but there’s no proof yet that it works as a treatment for SAD

On the other hand, we do know that vitamin D deficiency is linked to depression. Consider talking to a healthcare professional about testing your vitamin D levels. If your levels are low, it’s possible that it could be worthwhile to take a supplement

You can also boost your vitamin D levels naturally by:

5. Physical exercise

Exercise is a natural mood booster. It can help with depression symptoms, especially when combined with first-line treatments, like medications and therapy. 

Aim for at least 10 minutes of exercise a day, and increase as you’re able. Try:

  • Going for a short walk outside

  • Doing yoga at home

  • Riding on a stationary bike

  • Swimming in a heated pool

  • Taking a tai chi class

  • Going dancing with friends

  • Walking in place while watching a funny movie

Exercising outside can be especially helpful for SAD, especially during daylight hours. 

6. Nutritious foods

It’s probably no surprise that eating nutritious foods is linked to better physical and mental health. Though there’s no clear eating pattern that’s proven to help with SAD, we do know that eating nutritious foods can help with depression

Top choices include:

These foods contain vitamins, minerals, and omega-3 fatty acids that may be helpful in preventing and recovering from depression. 

7. Journaling

Research shows that journaling can help manage depression. It’s a safe space to write about what you’re going through without fear of being judged.

Here are a few journaling ideas to get you started:

  • Spend 20 minutes a day writing about your deepest thoughts and feelings.

  • Jot down a list of things you’re grateful for each day.

  • Keep a thought record, and challenge negative thoughts.

  • Track your moods throughout the day.

  • Set personal goals, and record the steps you need to take to achieve those goals.

8. Mindfulness

Mindfulness is the practice of being aware of your thoughts and feelings without judgment. Research suggests that practicing mindfulness can prevent and treat depression.

There are a few ways to get going with mindfulness, such as:

9. Social support

When you have SAD, it can be easy to isolate yourself from friends and family. But, in reality, getting support from other people may actually help you feel better

Consider reaching out to people in your life. Call a loved one or get together with a close friend for lunch. Joining a support group can go a long way, too. 

10. Being outside

Spending time in nature can help fight depression. And, when it comes to SAD, spending time outside gives you access to nature's original “light therapy:” sunlight. 

There’s also some evidence that spending time outdoors can help you sleep better at night by regulating your circadian rhythm, which may, in turn, help with SAD. 

When should you see a healthcare professional for SAD?

If you think you have SAD, talk with a healthcare professional. They can diagnose your symptoms and evaluate the severity of what you’re experiencing. Depending on their findings, they can suggest the best treatments to get you through the season.

Don’t wait to talk to someone if you’re having suicidal thoughts or your depression is getting worse. If you need someone to talk to right away, call the Suicide and Crisis Lifeline at 988, call 911, or go to the emergency room.

Frequently asked questions

Seasonal affective disorder (SAD) typically starts in the fall or winter and lasts until spring. You can also have SAD that starts in the spring or summer, though this is less common. 

No, SAD doesn’t typically get worse with age. 

It’s hard to say, but so far, there’s no clear evidence that St. John’s wort is a good treatment for SAD — or for depression, in general. In some research studies, it seems to work. In other studies, it doesn’t. 

St. John’s wort can also have side effects. It can even be dangerous to take with certain medications. If you’re interested in trying St. John’s wort for depression, check with a healthcare professional first. 

The bottom line

Seasonal depression can make it hard to get through the winter. Fortunately, treatment can go a long way toward keeping winter depression at bay. The best treatment options are usually light therapy, medications, and mental health therapy. But other strategies can help too, such as exercising, journaling, eating well, and getting outdoors. 

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Ana Gascon
Written by:
Ana Gascon
Ana Gascon has over 15 years of writing and editing experience, with 8 years in health and medical content work. She is a content creator who focuses on acute conditions, chronic diseases, mental health challenges, and health equity.
Sophie Vergnaud, MD, is the Senior Medical Director for GoodRx Health. A pulmonologist and hospitalist, she practiced and taught clinical medicine at hospitals in London for a decade before entering a career in health education and technology.
Sarah Gupta, MD
Reviewed by:
Sarah Gupta, MD
Sarah Gupta, MD, is a licensed physician with a special interest in mental health, sex and gender, eating disorders, and the human microbiome. She is currently board certified by the American Board of Psychiatry and Neurology.

References

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