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Seasonal Affective Disorder (Sad)

Overview

Seasonal affective disorder (SAD) is a type of depression that happens predictably with the change of seasons. It's like a type of depression that follows a schedule, starting and ending around the same times each year. For many people with SAD, the symptoms usually begin in the fall and continue into the winter. These symptoms can make you feel tired and sluggish, and affect your mood in a negative way. Importantly, these symptoms typically go away during spring and summer. In some cases, however, SAD might start in the spring or early summer and fade in the fall or winter.

SAD can be treated in several ways. Light therapy, also known as phototherapy, is one option. Talking to a therapist (psychotherapy) can also help. Sometimes, medication is necessary as well.

Don't ignore those recurring feelings. Don't dismiss them as just a temporary "winter blues" or something you have to handle alone. Taking steps to manage your mood and motivation can make a real difference throughout the year. This might include seeking professional help, making lifestyle changes, or combining different treatment methods.

Symptoms

Seasonal affective disorder (SAD) is a type of depression that's linked to the changing seasons. Most often, SAD symptoms start in late fall or early winter and disappear during the warmer months. However, some people experience the opposite, with symptoms appearing in spring or summer. In either case, the symptoms usually begin subtly and get worse as the season progresses.

SAD can cause a range of feelings and behaviors. Common signs and symptoms include:

  • Feeling consistently down or sad: This feeling of sadness is a prominent feature and lasts for a significant portion of each day, almost every day.
  • Losing interest in things you used to enjoy: This could involve hobbies, social activities, or even things you previously found pleasurable.
  • Low energy and sluggishness: You might feel tired and drained more often than usual.
  • Sleeping too much: This isn't just feeling tired; it's a significant increase in the amount of sleep you need.
  • Increased cravings for carbohydrates and overeating: This can lead to weight gain as you may find yourself reaching for sugary or starchy foods more frequently.
  • Difficulty concentrating: It can be hard to focus on tasks or remember things clearly.
  • Feeling hopeless, worthless, or guilty: These negative thoughts and feelings are common with SAD.
  • Thoughts of wanting to end your life: This is a serious symptom. If you experience these thoughts, seek help immediately.

If you're experiencing these symptoms, it's important to talk to a doctor. They can help determine if you have SAD or another condition and recommend appropriate treatment options.

When to see a doctor

Feeling sad sometimes is completely normal. But if you're feeling down for a long time and can't seem to enjoy the things you usually like, it's a good idea to talk to your doctor. This is particularly important if you've noticed changes in your sleep or eating habits, if you're using alcohol more to cope, or if you're feeling hopeless or having thoughts of suicide. These are signs that something might need professional help.

Causes

Seasonal affective disorder (SAD) is a type of depression that happens with the change of seasons, especially during the fall and winter. Scientists still aren't sure exactly why it happens. However, a few things seem to be involved:

  • Your body's natural clock (circadian rhythm): During fall and winter, there's less sunlight. This decrease can affect your body's internal clock, which regulates many of your daily functions. When your body's clock is disrupted, it can lead to feelings of sadness and low mood. Think of it like your body's internal alarm clock getting confused.

  • Brain chemicals (neurotransmitters): One important brain chemical is serotonin. It helps control your mood. Lower levels of serotonin have been linked to depression. The reduced sunlight in winter might lead to lower serotonin levels, which could contribute to the feelings of sadness associated with SAD.

  • Melatonin: Your body produces a hormone called melatonin, which helps regulate your sleep-wake cycle. Changes in seasons can affect the amount of melatonin your body produces. If the balance of melatonin is off, it can impact your sleep patterns and mood, potentially leading to depression. Think of melatonin as a sleep helper, and when its levels are off, sleep and mood can be affected.

Risk factors

Seasonal affective disorder (SAD) is more common in women than men, and it's more often diagnosed in younger people.

Several things can make you more likely to have SAD:

  • Family history: If someone in your family has SAD or other types of depression, you might be more prone to it yourself. This is because some people inherit a tendency towards these conditions.
  • Existing mental health conditions: If you already have major depression or bipolar disorder, SAD symptoms might show up more strongly during certain times of the year. This means the usual symptoms of depression might be worse during specific seasons, like winter.
  • Location: People who live far from the equator, in places with long winters and short summers, seem to get SAD more often. This is likely because there's less sunlight in the winter, which can affect your mood and other body functions. Less sunlight can also mean lower levels of vitamin D, which can play a role in SAD.
  • Vitamin D levels: Your body makes some vitamin D when your skin is exposed to sunlight. Vitamin D is important for many bodily functions, including mood regulation. If you don't get enough sunlight, you might not produce enough vitamin D. This can lead to low vitamin D levels, which can contribute to SAD. Even if you get some sunlight, you may still need to get vitamin D from food, supplements, or other sources, to maintain sufficient levels.
Complications

Seasonal affective disorder (SAD) is a type of depression that happens during certain times of the year, often winter. It's important to take the signs and symptoms of SAD seriously, just like any other type of depression. If SAD isn't treated, it can get worse and cause significant problems.

Untreated SAD can lead to several difficulties:

  • Pulling away from friends and family: People with SAD might stop spending time with others, or feel isolated.
  • Trouble at school or work: SAD can make it hard to concentrate, be productive, or even go to school or work. This can affect grades, job performance, and overall well-being.
  • Using drugs or alcohol: Sometimes, people with SAD turn to substances like alcohol or drugs to try and cope with their symptoms. This can lead to further problems with addiction.
  • Other mental health issues: SAD can increase the risk of developing other mental health problems like anxiety or eating disorders.
  • Thinking about harming yourself: In severe cases, SAD can lead to thoughts of suicide or self-harm. This is a serious sign that needs immediate attention.

If you or someone you know is experiencing SAD symptoms, it's crucial to seek help from a healthcare professional. Early intervention can significantly improve outcomes and prevent more serious problems from developing.

Prevention

Seasonal affective disorder (SAD) can't be stopped from happening. But you can take steps to manage its symptoms and keep them from getting worse. SAD often involves changes in mood, how much you eat, and your energy levels. Knowing when SAD typically starts (fall or winter) helps you watch for these changes. Treatment is important to prevent problems, especially if you get diagnosed and treated early.

Some people find it helpful to start treatment before the fall or winter, when they usually notice symptoms. They might continue treatment even after the typical SAD season ends. Other people need ongoing treatment to keep SAD from coming back.

Diagnosis

Accurately diagnosing seasonal affective disorder (SAD) can be tricky, even for doctors and therapists. This is because SAD shares some symptoms with other types of depression and mental health issues.

Figuring out if you have SAD often involves a comprehensive evaluation. Here's what that usually looks like:

  • Physical Checkup: Your doctor will likely perform a physical exam and ask detailed questions about your overall health. Sometimes, depression can be a sign of an underlying physical problem, like a thyroid issue or another medical condition. They might want to check your blood pressure, listen to your heart, and ask about any other health concerns.

  • Blood Tests: To rule out any physical causes for your symptoms, your doctor might order some blood tests. A complete blood count (CBC) is one example. They might also check your thyroid hormone levels, as thyroid problems can mimic depressive symptoms.

  • Mental Health Assessment: A crucial part of the diagnosis is a psychological evaluation. Your doctor or therapist will ask you about your mood, thoughts, feelings, and behavior patterns over time. They'll want to know how these things have changed, especially during different seasons. You may be asked to fill out questionnaires to help you describe your experiences. This helps to distinguish between SAD and other forms of depression or anxiety. They are looking for patterns that suggest a seasonal connection to your symptoms.

Treatment

Seasonal affective disorder (SAD) can be treated in several ways. These include light therapy, talk therapy (psychotherapy), and medication.

Light Therapy (Phototherapy):

This involves sitting near a special light box for a short time each morning. The bright light mimics natural sunlight and may adjust brain chemicals that affect mood. It's often one of the first treatments tried for fall-onset SAD. Usually, you'll start to feel better within a few days to a few weeks. Side effects are typically minimal. Before buying a light box, talk to your doctor. They can help you choose the right one and explain how to use it safely and effectively.

Talk Therapy (Psychotherapy):

Another approach is talk therapy. One type, cognitive behavioral therapy (CBT), can help you:

  • Cope with SAD: Learn healthy ways to manage your feelings, including reducing avoidance and making time for enjoyable activities.
  • Change negative thoughts: Identify and change thoughts and behaviors that worsen your symptoms.
  • Manage stress: Develop strategies for handling stress.
  • Improve lifestyle: Learn how to increase physical activity and get better sleep.

Medication:

Some people with SAD, especially those with severe symptoms, find antidepressants helpful. A specific type of extended-release bupropion (like Wellbutrin XL) may be particularly useful for preventing SAD episodes in people who have had it before. Other antidepressants are also commonly used.

Your doctor might recommend starting an antidepressant before SAD typically begins each year. They might also suggest continuing the medication even after your symptoms normally go away. It can take several weeks for antidepressants to fully work, and you might need to try different medications to find one that works well for you with minimal side effects.

Important Note: If you have bipolar disorder, it's crucial to tell your doctor and mental health professional. Light therapy and antidepressants can sometimes trigger a manic episode in people with bipolar disorder. Your treatment plan needs to consider this possibility.

Self-care

To help manage Seasonal Affective Disorder (SAD), consider these additions to your treatment plan:

  • Boost the brightness in your surroundings. Open your curtains and blinds wide, trim any trees blocking sunlight, or even add skylights to your home. Try sitting near bright windows, both at home and at work. The more natural light you can get, the better.

  • Spend time outdoors, even if it's cloudy. Go for a walk, have lunch in a park, or simply sit on a bench and enjoy the fresh air. Sunlight, even on a cold or cloudy day, can be helpful. It's particularly beneficial to get some outdoor time within two hours of waking up in the morning.

  • Be active. Regular exercise, like walking, swimming, or biking, can help reduce stress and anxiety, which often worsen SAD symptoms. Physical activity can also boost your self-esteem and improve your mood.

  • Establish a regular sleep schedule. Set consistent wake-up and bedtimes every day. This is especially important during the fall and winter when SAD is more common. Limit or avoid naps and oversleeping. A regular sleep schedule is crucial for overall well-being.

Preparing for your appointment

Getting help for depression can be a journey, but it's important to take steps to make the process smoother. To start, you should schedule an appointment with your primary care doctor or a mental health professional like a psychiatrist or psychologist.

Preparing for Your Appointment:

Before your appointment, jot down some information so you can be prepared and get the most out of your time with the doctor. This will help you remember everything and make sure you don't miss anything important.

Things to Write Down:

  • Your symptoms: How are you feeling? This could include feeling sad, lacking energy, sleeping too much, or changes in your appetite. Write down when these feelings started and how long they've lasted.
  • Your depression patterns: When do you typically feel down? What seems to make your mood better or worse? Keeping track of these patterns can help your doctor understand the triggers and potential causes of your depression.
  • Other health issues: Do you have any other physical or mental health problems? This is important because these conditions can sometimes affect your mood.
  • Stress and life changes: Have you experienced any significant stressors or changes recently, like a job loss, relationship problems, or a death in the family? Stress can be a contributing factor to depression.
  • Medications and supplements: List everything you're taking, including vitamins, herbs, and supplements. Include the dosage for each. This is crucial as some medications and supplements can interact with each other or affect your mood.
  • Questions for the doctor: Write down any questions you have for the doctor. This can include:

Example Questions:

  • About your symptoms: Could my symptoms be caused by something else? What else might be contributing to my depression?
  • About treatment: What are the different treatment options available? Would a light box help? Are there any lifestyle changes I can make to improve my mood?
  • About medication: Would medication help me? If so, are there any generic alternatives? Are there any side effects I should be aware of?
  • About resources: Are there any brochures or websites that you recommend?

What the Doctor Might Ask:

Your doctor will likely ask you questions to understand your situation better. Be prepared to answer these questions honestly and thoroughly.

  • About your symptoms: What are your symptoms? When did they start? Have they been constant or come and go? How do these symptoms affect your daily life?
  • About triggers: What seems to improve your mood? What makes it worse?
  • About other health conditions: Do you have any other medical conditions or mental health issues?
  • About medications: Are you taking any medications, supplements, or herbal remedies? Do you use alcohol or recreational drugs?
  • About family history: Does anyone in your family have a history of depression or other mental health conditions?

Remember, being prepared with information and questions will help you have a productive appointment and get the best possible care.

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Disclaimer: August is a health information platform and its responses don't constitute medical advise. Always consult with a licenced medical professional near you before making any changes.

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