"The Worst Time of Day Uncovered by Scientists"

Scientists have discovered that 5 a.m. is the worst time of day for mood, while 5 p.m. is the cheeriest, based on a study published in the “PLOS Digital Health Journal.” The study, which analyzed Fitbit data from medical interns, found that mood follows a rhythm connected to the body’s internal clock, with mood worsening the longer someone is awake. However, the study's small sample size and artificial setting may not fully capture the complexity of mood variation. Nonetheless, researchers believe the study demonstrates the potential of using non-invasive digital tools like Fitbit in clinical settings to explore factors in mental health issues.