Spring fatigue debunked: Science says it's all in your head

A new study from the University of Basel has dismissed spring fatigue as a myth. Researchers found no evidence of increased tiredness, poor sleep, or daytime drowsiness during the season. While many claim to experience it, the phenomenon appears to lack scientific backing.

The study began with an online survey where numerous participants reported suffering from spring fatigue. However, follow-up interviews conducted over a full year revealed no measurable rise in exhaustion or sleep problems during spring. Even the rapid shift in daylight hours—a common explanation—showed no effect on fatigue levels.

One theory suggests the belief stems from a labelling effect: the widespread myth makes people more likely to notice and attribute normal tiredness to spring. Another possibility is cognitive dissonance reduction, where individuals seek an explanation when they fail to feel the expected burst of energy in spring.

Outside German-speaking regions, the term is virtually unknown. In English-speaking countries, 'spring fever' exists but describes heightened energy and vitality—not fatigue. This contrast highlights how cultural framing shapes perceptions of seasonal changes.

The findings confirm that spring fatigue has no basis in medical reality. No objective signs of increased tiredness or sleep disturbances were detected in spring. Instead, the study points to psychological and cultural factors as the likely drivers behind the widespread belief.