Blue Monday may affect energy levels and sleep

Blue Monday falls on January 19, 2026, and while the label lacks scientific backing, experts say January's short days and post-holiday routine shifts can disrupt sleep and lower energy.

Blue Monday is observed each year on the third Monday of January, which falls on January 19, 2026. The day is popularly described as the "most depressing day of the year," though the label traces back to a reportedly pseudo-scientific formula and lacks credible scientific backing. Experts interviewed note that January's darker mornings, changes in routine after the holidays, and increased evening phone use can all affect sleep and daytime energy. The article reports five commonly mentioned approaches that people and sleep writers describe as ways to help restore sleep patterns. Key points: - The term "Blue Monday" was reportedly coined in 2005 and does not rest on a verified scientific formula; clinicians say the label itself can shift expectations and affect mood. - Health professionals report January is a busy time for fatigue, low motivation and disrupted sleep, with factors including dark mornings, reduced daylight, altered routines after holiday socialising, and more evening screen time (sometimes described as doomscrolling). - The article lists five reported measures discussed by experts and writers: writing a brief next-day list before bed, limiting late-night screen use, seeking daytime light exposure (including outdoor time or SAD lamps), gentle daytime activity such as walks, and using sunrise-style alarm devices. Summary: For many people, reduced daylight and post-holiday routine changes in January can lower daytime energy and fragment sleep. Undetermined at this time.