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Understanding Seasonal Affective Disorder and How to Manage It

A woman suffering from Seasonal affective disorderMillions of people suffer from seasonal affective disorder (SAD), experiencing depression for a prolonged period during a particular season, usually winter. It can seriously impact your life. However, there are steps you can take to properly manage the condition and alleviate the symptoms. If you understand the condition, you can apply the proper remedy to combat its effects.

What Is Seasonal Affective Disorder?

Seasonal affective disorder, also called SAD, is a type of depression triggered by a shift in seasons. Each year, around the same time, SAD sufferers experience depression that lasts until the end of the season. SAD is most common during the fall and winter seasons, but some sufferers experience depression in spring and summer.

Types of Seasonal Affective Disorder

SAD can be broken down into two main types.

Fall and Winter SAD

With this type of SAD, the symptoms of depression are specific to the fall and winter seasons. It’s also referred to as winter depression. Symptoms may include sleeping issues (oversleeping), weight gain, changes in appetite (carbohydrate cravings), tired feelings, sadness, lack of energy, social withdrawal (“hibernating”), and thoughts about death or suicide.

Spring and Summer SAD

With this type of SAD, the symptoms of depression are specific to the spring and summer seasons. It’s also referred to as summer depression. Symptoms may include sleep disruption (insomnia), weight loss, poor appetite, anxiety, agitation and irritability, and episodes of violent behavior.

The most significant and persistent symptom of SAD that sufferers experience is depression that lingers all day and, in most instances, every day.

Causes of Seasonal Affective Disorder

The exact cause of SAD is unclear. However, doctors believe that certain factors contribute to the illness. Three key factors include:

Drop in Serotonin Levels

When you don’t get enough sunlight, your body will experience a reduction in serotonin levels. Serotonin is a brain chemical (neurotransmitter) that plays a key role in mood regulation, helping to keep you in a good mood. However, when serotonin levels drop, it has the potential to trigger an imbalance in the brain chemical. When this disruption happens, the feelings of happiness can be replaced with depression. Winter is a time when you have less sunlight, and this is the time of year when serotonin levels tend to fall. Reduced exposure to sunlight could be a factor in fall and winter seasonal affective disorder.

Imbalance in Melatonin Levels

Seasonal changes can disrupt the balance of melatonin in the body. Melatonin is a hormone that is produced by the pineal gland in the brain, and it is responsible for managing your sleep-wake cycle, which can impact your mood. This hormone is produced during the night, and if there’s a lack of sunlight during the day, this could stimulate an overproduction of melatonin. This can happen during the fall and winter seasons and has the potential to disrupt your sleep cycle. As such, you may experience symptoms such as sleepiness and a sluggish feeling if your melatonin levels are too high.

Disruption in Your Biological Clock

Your natural biological clock may become disrupted during fall and winter when there is less sunlight. This could trigger fall and winter seasonal affective disorder by impacting your mood, sleep, and the hormones that it regulates. The shift in your biological clock can cause you to become depressed and factor into fall and winter SAD.

Risk Factors for Seasonal Affective Disorder

An image of a depressed man sitting on the train tracksSome of the risk factors for seasonal affective disorder that have been observed include:

  • Family history: Persons with blood relatives that have SAD appear to have a higher chance of developing SAD.
  • Suffering from depression or bipolar disorder: If you suffer from depression or bipolar disorder, you can have worsening symptoms with seasonal shifts.
  • Living far from the equator: If you reside in the far north or far south of the equator, you may be at an increased risk of developing SAD because you get less sunlight during the winter. As such, persons living in Alaska have an increased chance of developing SAD than a person living in Arizona.

Who Develops Seasonal Affective Disorder?

Of the U.S. population, roughly 5% of adults experience SAD. Still, many persons may be unaware that they have SAD.

It’s a condition that more women suffer from than men, though researchers aren’t sure why. In addition, more young adults (typically between 18 and 30 years old) are affected than older individuals. It tends to start in young adulthood.

Also, according to the NIMH, SAD is more common in people with bipolar II disorder, a hyperactivity disorder, an anxiety disorder, an eating disorder, or a panic disorder.

Complications of Seasonal Affective Disorder

You should never ignore the signs and symptoms of SAD. If left untreated, the symptoms of the condition can worsen. Some complications that could result include:

  • Isolation or social withdrawal
  • Problems at work or school
  • Substance abuse (alcohol, narcotics)
  • Developing other mental health conditions like anxiety or eating disorders
  • Suicidal thoughts or behavior

Identifying Seasonal Affective Disorder

Your doctor or a mental health specialist can help to whether your symptoms could be related to SAD. While there is no specific blood test to assess the condition, if your symptoms mimic other conditions, your doctor may recommend testing to rule them out as the cause. In addition, your healthcare provider may have you fill out questionnaires to confirm if the symptoms that you’re experiencing fit the criteria for SAD.

According to the Cleveland Clinic, persons must meet the following criteria to be diagnosed with SAD:

  • Must exhibit symptoms of major depression.
  • The depressive episodes must occur during specific seasons (only in winter or only in summer), for, at minimum, two consecutive years. However, be mindful that not all persons with SAD experience symptoms annually.
  • Depressive episodes must occur more frequently than other depressive episodes experienced by the person at other times during the year.

Adrenal Fatigue Syndrome (AFS) and SAD

As established earlier, seasonal affective disorder appears to be linked to the human biological clock and disruptions in the natural rhythm that the sleep cycle follows. A disturbance in your sleep cycle as a result of changes in sunlight levels or prolonged stress can lead to insomnia, metabolic disorders, and mood disorders. AFS is one of the disorders that can disrupt your sleep cycle.

AFS is a neuroendocrine disorder that is caused by chronic stress that activates the Cardionomic circuit. This circuit houses the adrenal glands, the autonomic nervous system (ANS), and the cardiovascular system (CVS). AFS causes fatigue and puts excess stress on the body and the different systems.

The NeuroEndoMetabolic (NEM) Stress Response, helps to combat periods of stress. However, when the stress is prolonged, the systems malfunction and the adrenal glands become compromised and fail to work efficiently. Consequently, symptoms such as anxiety, lethargy, and mood swings may result. As such, AFS may lead to SAD or cause worsening symptoms.

Addressing SAD

Managing seasonal affective disorder takes on different forms depending on your symptoms. It can include a combination of light therapy, medications, and psychotherapy.

Light Therapy

Light therapy, part of the therapy for seasonal affective disorderLight therapy is essential for dealing with seasonal affective disorder. Sunlight provides the body with vitamin D that can help to boost your mood, and it provides light in a range of spectrums that can properly regulate your body’s circadian rhythms. Also, sunlight can help to positively impact the Neuroaffect circuit of NEM stress response by helping to normalize sleeping patterns.

Psychotherapy or “Talk Therapy”

Cognitive behavioral therapy (CBT) is a form of talk therapy that is used to help people learn to cope with challenges in their lives. CBT can be effectively applied to people with SAD. This type of therapy, referred to as CBT-SAD, is usually carried out in weekly group sessions that last for 6 weeks. It emphasizes the replacement of negative thoughts connected to the winter season with more positive thoughts.

Another aspect of CBT-SAD that is helpful is the use of behavioral activation to assist persons in finding and scheduling fun and engaging indoor or outdoor activities that they would otherwise not have partaken in during the winter.

Medications

Seasonal affective disorder is a type of depression linked to disturbances in serotonin activity, and antidepressant medications known as selective serotonin reuptake inhibitors (SSRIs) are used to ameliorate symptoms of SAD and enhance mood. Some popular SSRIs include citalopram, escitalopram, fluoxetine, paroxetine, and sertraline.

Also, the U.S. Food and Drug Administration (FDA) approved antidepressant bupropion can help to prevent the recurrence of seasonal major depressive episodes if taken as directed from the fall until early spring. Be sure to consult with your doctor if you have concerns regarding the risk of any medication taken for remedying SAD. Some of these medications can have side effects.

Lifestyle Changes

Some lifestyle changes can help to effectively keep SAD at bay.

  • Exercise, coupled with a healthy balanced diet, can improve your mood and energy levels during the winter season. Furthermore, it can help to regulate your sleep patterns as well.
  • Keep a gratitude journal. In your imperfect day, you may be able to find a bright spot. Write in your journal the things that you’re grateful for each day. This is a way to keep your emotions in check.
  • Do not isolate yourself during your depression. Instead, choose to socialize in ways that are pleasant, interactive, and safe. Keep social relationships thriving by calling family members and friends, setting up a video chat, and sending a text message. Do the activities that you love. Maybe volunteer at a shelter or be part of a club. Continue these activities when you feel down because they could help to enhance your mood. Remaining social can help boost your spirits and keep you connected to those you love and the things you love.
  • Self-awareness is key to making necessary lifestyle changes. Being mindful of your SAD can help you to focus less on the negative thoughts about winter. Accept the season for what it is and what it brings. If you look beyond the negatives, you can find a couple of things to love about the season.

Vitamin Supplementation

An image of a woman taking a supplementVitamin supplementation may help to regulate biochemical pathways and assist with proper cognitive functioning, which is excellent when dealing with mental disorders. Supplements can also be beneficial in remedying nutritional imbalances that can influence depression. They can help reduce symptoms and alleviate seasonal fluctuations in mood in SAD sufferers. Some supplements that have a positive impact on SAD include:

  • Vitamin D
  • B complex vitamins (including B6, B12, and B9)
  • Omega-3 fatty acids (fish oil)

The Takeaway

Seasonal affective disorder can have you feeling down for a prolonged period of time. This can impact your work life, social life, and your mental well-being. If you have a history of suffering from depressive feelings and thoughts during the winter or summer season, speak to your doctor. Get a proper assessment at your healthcare provider’s office if you are unsure if you have SAD.

If you are concerned about depression and would like assistance in determining natural ways to keep it at bay or remedy symptoms, the team at Dr. Lam Coaching can help. We offer a free** no-obligation phone consultation at +1 (626) 571-1234 where we will privately discuss your symptoms and various options.

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Dr. Lam’s Key Question

The onset of seasonal affective disorder occurs during a particular season and lasts all season long. A drop in serotonin levels, an imbalance of melatonin, and a disruption of the body’s biological clock are contributing factors to the condition. It can be managed with light therapy, lifestyle changes, medications, psychotherapy, and supplements.

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