As the sun dips by 5 pm, leaving behind cold wind, bare trees, and a blanket of snow, the full force of winter takes hold, bringing with it not only seasonal changes but also a wave of mood shifts. Seasonal Affective Disorder (SAD) is a type of depression that occurs at specific times of the year, most often during the fall and winter months when daylight hours are reduced. According to , SAD is believed to stem from a combination of reduced sunlight exposure, which affects serotonin levels and circadian rhythms, and heightened melatonin production, leading to increased lethargy and mood disturbances. To combat the effects of SAD, light therapy has emerged as a leading treatment, offering a simple yet effective way to address the root causes of this seasonal mood disorder.
One of the key benefits of light therapy is its ability to reset the internal clock disrupted by shorter days. This treatment can normalize sleep patterns and increase alertness by stimulating serotonin production, a neurotransmitter essential for mood regulation. Research highlights how light therapy can significantly improve serotonin levels and reduce depressive symptoms. According to the , many users experience noticeable relief within one to two weeks of consistent use, making it a fast-acting option for short-term results.
Additionally, highlights that light therapy is non-invasive, easy to incorporate into daily routines, and poses minimal side effects when used correctly. A typical session involves sitting near a light box for about 20 to 30 minutes each morning, ideally providing 10,000 lux of light intensity. This approach is effective not just for SAD but also for improving overall energy levels and combating seasonal lethargy. It’s important, however, to consult a healthcare provider to ensure the treatment is tailored to individual needs.
Want to try light therapy for yourself? You can rent a SAD light from the front desks at Shaw Wellness Institute or the Counseling Center and ! You can check out these lights for up to 2 hours for use around the libraries but remember you only need 30 minutes a day. For more information or concerns about using the lights, please contact Student Health Services or the Counseling Center.