# Low Energy Identified as Primary Symptom of Winter Blues UK study reveals seasonal energy dips impact young adults more than mood changes. - **Source:** [PsyBlog](https://www.spring.org.uk) - **Published:** 2026-11-10 - **Topic:** [health](https://brifing.si/c/health) - **Original article:** - **On Brifing:** https://brifing.si/s/4c67e413-5cd2-47e4-b764-39f149b61587 ## Primary Winter Symptom A recent study published in the journal PLOS ONE identifies low energy as the most prominent indicator of winter blues among young people. Researchers analyzed data from over 4,000 individuals aged 16 to 24 in the UK. The findings suggest that energy levels fluctuate more significantly during winter months than mood or sleep. ## Quantifying Seasonal Differences Using a 0–100 scale, the study measured symptom intensity across different seasons. Low energy scores increased by approximately 3 points during winter months compared to the rest of the year. Low mood scores also rose, but by a smaller margin of 2 points, while sleep loss showed no significant seasonal variation. ## Methodology and Data Scope The research utilized nearly 6,000 interviews collected through the UK’s Understanding Society survey during 2022 and 2023. By comparing winter data from December, January, and February against other months, the team established a clear group average. This approach highlights collective trends rather than tracking individual symptom progression over the entire year. ## Circadian Rhythm Disruptions Shorter daylight hours during winter likely disrupt the body clock, affecting when young adults feel alert. As sleep schedules naturally shift throughout adolescence and early adulthood, the timing of light exposure becomes critical. These biological changes may explain why energy levels drop even when other psychological indicators remain relatively stable throughout winter. ## Lifestyle and Routine Impacts Beyond biological factors, winter alters daily routines, reducing opportunities for outdoor exercise and in-person social interactions. These environmental changes contribute to the overall experience of winter blues. When individuals have fewer chances to remain active or engaged with friends, the impact on their daily energy levels becomes increasingly more pronounced. ## Broader Research Context This study aligns with previous findings, such as Canadian research from 2020, which indicated that young people experience a wider range of seasonal depressive symptoms compared to older adults. The consistency across different geographic regions suggests that developmental stages play a vital role in how seasonal transitions affect human health and daily functioning. ## Functional Daily Consequences Feeling consistently short of energy can significantly hinder engagement during daily tasks like school lessons or long work shifts. Even if a person’s mood remains largely unaffected, the physical drain of low energy creates a tangible barrier to productivity. This highlights the practical importance of addressing seasonal energy dips in young populations. ## Future Research Directions While the study provides a clear picture of seasonal energy trends, it emphasizes the need for continued observation of adolescent health. Understanding how environmental shifts interact with biological development remains essential for public health. Future investigations should continue to explore how specific lifestyle interventions might mitigate these seasonal energy declines in youth. ## Sources covering this story - https://www.spring.org.uk/2026/11/sign-winter-blues.php — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._