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  • Writer's pictureMin Jeon

Seasonal Depression: Let Your Sun Shine Through, Even on the Darkest of Days

Updated: Dec 7, 2023

As the vibrant hues of autumn turn into softer tones of white, and nature undergoes a tranquil transformation, many individuals may experience a subtle but profound shift in mood and energy levels. Though, it’s the season of holiday celebrations, cozy sweaters, and warm beverages, for some, there exists a silent struggle as the colder seasons, with their shorter days and longer nights, set in. As daylight dwindles and nature becomes more serene, the impact on mental well-being may become more pronounced. Seasonal depression, also known as Seasonal Affective Disorder (SAD), may cast a veil over some individuals during the colder seasons. Similar to how nature withdraws into hibernation, vitality and zest for life may undergo a temporary, transformative slumber.

The reduction in outdoor activities during colder seasons may contribute significantly to Seasonal Affective Disorder (SAD). The temptation to stay indoors and avoid the chilly weather may lead to a decrease in exposure to natural sunlight, which plays a crucial role in regulating mood and sleep patterns. Sunlight exposure is linked to the production of serotonin, a neurotransmitter that contributes to feelings of well-being and happiness. Reduced exposure to sunlight during the colder months can result in lower serotonin levels, potentially exacerbating symptoms of seasonal depression.

In addition to sunlight, the decline in physical activity during the colder seasons may further impact mental well-being. The temptation to lead a more sedentary lifestyle indoors may contribute to feelings of lethargy and worsen symptoms of Seasonal Affective Disorder. It's crucial to recognize that exercise is a powerful ally in warding off seasonal depression. Regular physical activity not only releases endorphins, boosting mood, but also helps regulate sleep patterns. By incorporating simple exercises into your routine, even in the comfort of your home, you can take proactive steps to uplift your spirits and potentially alleviate the effects of seasonal depression.

Along with taking these important steps to help improve seasonal depression, a compelling and promising treatment has emerged as a beacon of light for those in search of relief from Seasonal Affective Disorder. This transformative avenue holds the potential to significantly improve well-being and offers a myriad of benefits. As we navigate through the intricacies of this seasonal condition, we’ll delve into its causes and symptoms and explore how acupuncture may help improve Seasonal Affective Disorder.

Understanding Seasonal Affective Disorder

Seasonal Affective Disorder (SAD), also known as seasonal depression, is a distinct mood disorder characterized by recurring bouts of depression, typically in fall and winter when daylight is limited. It can affect people of all ages, genders, and backgrounds. While the exact cause is not fully understood, it is thought to be linked to reduced sunlight exposure during these seasons. This lack of sunlight can disrupt circadian rhythms and impact neurotransmitters like serotonin and melatonin, affecting mood and sleep patterns. The imbalance in these neurotransmitters due to diminished sunlight may contribute to the depressive symptoms experienced by those with Seasonal Affective Disorder, emphasizing the significant role environmental factors play in this specific type of depression. It's also important to note that the exact cause of Seasonal Affective Disorder may be multifactorial, and individual experiences may be influenced by a combination of factors.

Potential Causes of Seasonal Affective Disorder

While the exact causes of Seasonal Affective Disorder are not fully understood, several factors are believed to contribute to its development. It's important to emphasize that individual experiences of Seasonal Affective Disorder can vary, and a combination of factors may play a role. Here are some potential causes and contributing factors:

Biological Clock (Circadian Rhythm):

Disruptions to the body's internal clock, or circadian rhythm, due to changes in sunlight exposure can influence mood and sleep patterns.

Melatonin Levels:

Reduced exposure to sunlight during the fall and winter months may lead to increased production of melatonin, a hormone that regulates sleep and mood.

Serotonin Levels:

Reduced sunlight exposure may also result in lower serotonin levels in the brain. Serotonin is a neurotransmitter associated with mood regulation.


A family history of depression or SAD may increase an individual's susceptibility to developing the disorder.


Women may be more likely than men to experience SAD, though men can also be affected.


SAD may be more common in younger adults, and the risk of developing it tends to decrease with age.


Living farther from the equator, where there is less sunlight during the winter months, may increase the risk of SAD.

Seasonal Changes:

Changes in weather and daylight hours can impact mood and energy levels.

Sleep Disruptions:

Changes in sunlight exposure can affect sleep patterns, and disruptions in sleep can contribute to mood disorders.

Vitamin D Deficiency:

Reduced sunlight exposure can lead to lower levels of vitamin D, and some studies suggest a link between low vitamin D levels and mood disorders.

Social Factors:

The holiday season, which often occurs during the peak of SAD, can be stressful and may contribute to the development of depressive symptoms.

Stress and Lifestyle Factors:

High levels of stress, lack of physical activity, and poor lifestyle habits can contribute to the onset of depressive symptoms.

Personal History of Mental Health Conditions:

Individuals with a history of depression or other mental health disorders may be more susceptible to SAD.

Hormonal Changes:

Fluctuations in hormones, such as thyroid hormones, may play a role in the development of SAD.

Inflammatory Factors:

Some studies suggest a connection between inflammation in the body and mood disorders, including SAD.

Neurotransmitter Imbalances:

Beyond serotonin, other neurotransmitters such as norepinephrine and dopamine may be involved in the development of SAD.

Photoperiod Sensitivity:

Individual sensitivity to changes in daylight duration may contribute to the onset of SAD symptoms.

Light Sensitivity:

Some individuals may be more sensitive to changes in light, and this sensitivity could be a factor in the development of SAD.

Occupational Factors:

People whose jobs require them to be indoors during daylight hours may be more prone to SAD.

Social Isolation:

Reduced social interactions and outdoor activities during the colder months may contribute to feelings of isolation and exacerbate SAD symptoms.

Immune System Function:

The functioning of the immune system and its interactions with other physiological processes may influence mood during different seasons.

Nutritional Factors:

Dietary habits, including changes in eating patterns and nutritional deficiencies, may impact mood and energy levels.

Psychosocial Stressors:

Stressors such as relationship issues, work-related stress, or financial pressures may contribute to the development or exacerbation of SAD.

Trauma History:

Individuals with a history of trauma may be more vulnerable to seasonal changes impacting their mental well-being.

It's important to note that not everyone living in a region with less sunlight during certain months will experience Seasonal Affective Disorder, and the severity of symptoms can vary widely. If you or someone you know is experiencing symptoms of depression, including Seasonal Affective Disorder, it's important to seek professional help for an accurate diagnosis and appropriate treatment.

Potential Symptoms of Seasonal Affective Disorder

Individuals experiencing Seasonal Affective Disorder can exhibit a range of symptoms. The severity and combination of symptoms can vary from person to person. Some of these symptoms include:

Depressed Mood:

Persistent feelings of sadness, hopelessness, or emptiness.

Loss of Interest or Pleasure:

Decreased interest in activities that were once enjoyable.


Feeling tired or lacking in energy, even after a full night's sleep.

Changes in Sleep Patterns:

  • Hypersomnia: Increased need for sleep, excessive daytime sleepiness.

  • Insomnia: Difficulty falling asleep, staying asleep, or waking up too early.

Weight and Appetite Changes:

  • Increased appetite, especially for carbohydrates, leading to weight gain.

  • Decreased appetite, resulting in weight loss.


Increased sensitivity to stressors and a tendency to react with more irritability.

Difficulty Concentrating:

Problems with focus, memory, and making decisions.

Feelings of Worthlessness or Guilt:

Persistent negative thoughts about oneself.

Social Withdrawal:

Avoidance of social activities and decreased interest in social interactions.

Physical Symptoms:

Various physical complaints, such as headaches or stomachaches, without a clear medical cause.

Loss of Libido:

Decreased interest in and enjoyment of sexual activities.


Inability to experience pleasure from activities usually found enjoyable.

Suicidal Thoughts:

In severe cases, thoughts of death or suicide may occur.

Increased Sensitivity to Rejection:

Feeling more sensitive to social rejection or criticism.

Difficulty with Relationships:

Struggling to maintain or initiate relationships with others.

Heavy Feeling in the Limbs:

A sensation of heaviness or sluggishness in the arms or legs.

Feeling Restless:

A sense of restlessness or being on edge.

Difficulty in School or Work Performance:

Decline in academic or professional functioning.

Symptoms may recur at the same time each year, potentially starting in the fall and continuing through the winter months. Keep in mind that not everyone will experience all of these symptoms, and the severity can vary from person to person. If you or someone you know is exhibiting symptoms of Seasonal Affective Disorder, it is important to seek professional help.

Potential Benefits of Acupuncture for Seasonal Affective Disorder

Regulating Neurotransmitters:

Acupuncture may potentially influence the release and regulation of neurotransmitters, such as serotonin and dopamine, which play key roles in mood regulation. Some studies suggest that acupuncture may impact the central nervous system, potentially promoting the release of endorphins and other neurochemicals that help to increase positive moods.

Stress Reduction:

Acupuncture may potentially activate the parasympathetic nervous system, promoting relaxation and reducing the stress response. Chronic stress is often associated with depression, and acupuncture may help manage stress levels.

Endorphin Release:

Acupuncture may stimulate the release of endorphins, the body's natural painkillers. Endorphins can induce feelings of well-being and may contribute to an improved mood.

Immune System Modulation:

Acupuncture may modulate the immune system, potentially addressing the inflammation and immune system changes that have been associated with depression.

Hormonal Regulation:

Acupuncture may potentially influence hormonal levels, including those related to the endocrine system. Hormonal imbalances are linked to mood disorders, and acupuncture may potentially help restore balance.

Circadian Rhythm Regulation:

Seasonal depression is often linked to disruptions in circadian rhythms. Acupuncture may potentially help regulate these rhythms, which could positively impact sleep patterns and mood.

Improved Sleep Quality:

Sleep disturbances are common in individuals with SAD. Acupuncture has been associated with improvements in sleep quality, potentially addressing one of the key symptoms of seasonal depression.

Enhanced Blood Flow:

Acupuncture may enhance blood circulation, potentially facilitating the delivery of nutrients and oxygen to the brain. Improving blood circulation and delivering nutrients and oxygen to the brain may play a role in promoting overall mental well-being.

Lifestyle Changes That May Help Improve Seasonal Affective Disorder

In addition to acupuncture, there are various approaches that may help alleviate symptoms of Seasonal Affective Disorder. Individual responses may vary, so it may be helpful to try a combination of these methods to see what works best for you. Always consult with a healthcare professional before making significant changes to your health routine and treatment plan. Here are some lifestyle changes to potentially improve Seasonal Affective Disorder:

Light Therapy (Phototherapy):

Exposure to bright light, particularly full-spectrum light that mimics natural sunlight, has been shown to be effective in treating SAD. Light therapy may help regulate circadian rhythms and improve mood.

Maintaining a Healthy Diet:

  • Nutrient-rich foods, including fruits, vegetables, whole grains, and lean proteins, support overall health and may have a positive impact on mood.

  • Omega-3 fatty acids found in flax and chia seeds may also have mood-enhancing effects.

  • Avoid excessive consumption of processed foods and sugar

Vitamin D Supplementation:

Seasonal changes may lead to reduced exposure to sunlight, which may result in lower vitamin D levels. Vitamin D supplementation has been explored as a potential intervention for SAD and many may benefit from vitamin D supplements. Consult with a healthcare professional to determine if supplementation is right for you.

Regular Exercise:

Physical activity has well-established benefits for mental health. Regular exercise may help alleviate symptoms of depression, improve mood, and contribute to overall well-being. Outdoor exercise, when possible, provides additional exposure to natural light.

Cognitive Behavioral Therapy (CBT):

CBT is a widely recognized therapeutic approach that may help individuals identify and modify negative thought patterns and behaviors. It has been shown to be effective in treating various forms of depression, including SAD.

Mind-Body Practices:

  • Mindfulness practices, such as meditation and deep-breathing exercises, may help manage stress and potentially improve emotional well-being.

  • Mindfulness-based approaches have shown promise in reducing symptoms of depression.

  • Practices like yoga, qigong and tai chi may help improve overall well-being.

Social Support:

Maintaining social connections and engaging in positive activities with family and friends may provide emotional support. Engaging in positive social interactions may counteract feelings of isolation and contribute to uplifting moods and fostering a more positive outlook.

Kind Acts:

Engaging in acts of kindness towards others can have a profound impact on one's own well-being. Performing kind acts releases endorphins, promoting feelings of joy and satisfaction. Acts of kindness may create a sense of purpose and connection with others, potentially counteracting the impact of SAD symptoms by fostering a positive and connected mindset.

Create a Daily Routine:

  • Creating a consistent daily routine, including regular sleep patterns, may help stabilize circadian rhythms and contribute to a sense of predictability and control.

  • Establishing a regular daily routine may provide structure and a sense of stability, which may be particularly helpful during the darker months.


Cultivating a sense of gratitude has been linked to improved mental well-being and may serve as a powerful tool in managing symptoms of SAD. Expressing gratitude regularly can shift focus away from negative thoughts, promoting a more positive mindset.

Massage Therapy:

Massage may help promote relaxation and reduce stress. It may also help improve mood by releasing endorphins.

Art and Music Therapy:

  • Engaging in creative activities like art or music can be therapeutic and provide an outlet for self-expression.

  • Listening to music may positively impact Seasonal Affective Disorder (SAD) or Seasonal Depression by positively influencing mood and emotions. Music has the ability to evoke positive feelings and stimulate the release of neurotransmitters like dopamine and serotonin, which are associated with happiness and well-being. Engaging with uplifting or calming music may help counteract symptoms of Seasonal Affective Disorder, providing a therapeutic and mood-enhancing effect.

Sleep Hygiene:

Ensure you maintain a consistent sleep schedule and create a conducive sleep environment. Stabilizing circadian rhythms and promoting better sleep positively influences mood and overall well-being. Quality sleep is crucial for mental health.

Combining several of these approaches may enhance their effectiveness in improving Seasonal Affective Disorder. Remember that these suggestions may not be a one-size-fits-all solution, as different strategies may work better for different people, and it's essential to listen to your body and consult with healthcare professionals for personalized advice and guidance.

It is essential to emphasize that the information presented here is not intended as a substitute for medical treatment. If you suspect you have Seasonal Affective Disorder, it is crucial to promptly seek the guidance of professional healthcare providers.

As winter unfolds its quiet beauty and holiday cheer abounds, Seasonal Affective Disorder (SAD) may dim the joys of the season for some. But remember, Seasonal Affective Disorder doesn’t have to shape the seasons for you. In the pursuit of well-being, acupuncture emerges as a comprehensive approach to potentially reduce symptoms of Seasonal Affective Disorder and increase positive moods and energy. Discover the healing potential of acupuncture. It's time to take back control of your seasons and let the sun shine through, brightening your spirit, even on the darkest of days.

If you are interested in acupuncture for the treatment of Seasonal Affective Disorder, please contact us at Acupuncture and Wellness Clinic. Dr. Min K. Jeon’s extensive knowledge and experience in treating Seasonal Affective Disorder has led to significant improvements and relief in many of her patients. With her comprehensive approach that combines acupuncture and complementary therapies, Dr. Min creates customized treatment plans that address each patient’s unique needs. So, take your next step towards potential relief by contacting us to schedule a free one-on-one consultation to meet with Dr. Min. During this consultation, she'll take the time to discuss your concerns, answer questions, evaluate you, and share a potential treatment plan designed specifically to your needs.

At Acupuncture and Wellness Clinic, we're passionate about helping you regain your health and well-being. Contact us today to schedule a free consultation. It’s time you experience freedom from Seasonal Affective Disorder and get back to enjoying the beauty and joy of all the seasons!

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