Residents of Nordic nations have developed proven strategies to cope with the winter blues, despite enduring months of near-constant darkness and biting cold. The seasonal challenge, which can last from October to April, peaks around the winter solstice on 21 December, the shortest day of the year in the Northern Hemisphere.
Dr Timo Partonen, a research professor at the Finnish Institute for Health and Welfare, explains that limited daylight disrupts the circadian rhythm, leading to longer sleep but less refreshment and persistent tiredness. He recommends using a dawn simulator, or sunrise alarm clock, to gradually light up the bedroom and ease waking.
Social withdrawal is common in winter, increasing irritability and conflict. Dr Partonen stresses the importance of maintaining relationships, as symptoms rarely improve in isolation. He also advises exercising with a friend to combat the winter blues and prevent weight gain, which typically amounts to 2 to 5 kilograms (4 to 11 pounds) per year.
Seasonal affective disorder (SAD) affects millions worldwide, with episodes beginning in autumn and easing in spring or summer. A milder form, subsyndromal SAD, also exists. Research indicates that people with SAD are less sensitive to blue light, which affects mood and alertness. Light therapy, using devices emitting about 10,000 lux for 30 minutes each morning, can help reset the circadian rhythm and boost serotonin.
Christian Benedict, a pharmacology professor at Uppsala University in Sweden, emphasises that winter blues are not inevitable. He suggests light therapy for both SAD and milder cases. Dr Partonen recommends combining a dawn simulator with a light therapy device before noon. Ida Solhaug, an associate professor in psychology at the University of Tromsø, advises embracing winter with a positive outlook as a key survival strategy.
