Study Reveals 5 a.m. as Worst Time for Mood, Highlighting Circadian Rhythm's Impact

Research on over 2,500 medical interns shows mood dips lowest at 5 a.m. and peaks at 5 p.m., independent of sleep deprivation.

Medical interns experience their lowest moods near 5 a.m., with an uplift by 5 p.m., based on the analysis of Fitbit data from over 2,500 participants.
Sleep deprivation exacerbates mood swings, further lowering mood levels and enhancing mood variability throughout the day.
The study utilized continuous data collection over two years, including heart rate, steps, sleep, and daily mood scores, making it a significant inquiry into the impacts of work stress and sleep patterns on mood.
Researchers discovered that mood follows a rhythm connected to the body's internal clock, and the clock's influence increases as someone stays awake longer.
Noninvasive tools such as Fitbits or other smart watches could be useful in tracking mood disorders and circadian rhythms.