Tag

Circadian Rhythms

All articles tagged with #circadian rhythms

Meal timing fails to improve sleep, large TRE study finds
lifestyle1 month ago

Meal timing fails to improve sleep, large TRE study finds

A 12-week trial of nearly 200 adults with overweight/obesity compared early, late, and flexible daily eating windows. Sleep duration, sleep quality, and mood were similar across all groups; the only notable difference was about 12 minutes more total sleep for early TRE vs usual care. The findings suggest that shifting dinner time alone is unlikely to meaningfully boost sleep, and practical decisions should be guided by personal schedules and hunger patterns rather than expecting a sleep payoff.

Timing meals won’t fix sleep, large TRE study finds
lifestyle1 month ago

Timing meals won’t fix sleep, large TRE study finds

A 12-week trial in nearly 200 adults with overweight/obesity compared early, late, and self-selected eating windows (time-restricted eating). Sleep duration, efficiency, awakenings, mood, and overall well-being were similar across all groups; only the early-window group showed a small ~12-minute increase in total sleep time versus usual care. The findings suggest that simply moving dinner earlier or later does not meaningfully improve sleep, though time-restricted eating can aid weight management. Results apply to adults 30–60 without serious sleep problems, and limitations include mild baseline sleep issues, unadjusted chronotype, caffeine use, and potential industry ties. Future research with polysomnography and diverse populations is needed.

Sleep Irregularities Linked to 172 Diseases in a Major UK Biobank Study
health1 month ago

Sleep Irregularities Linked to 172 Diseases in a Major UK Biobank Study

A June 2025–based observational analysis of over 88,000 UK Biobank participants found disrupted sleep patterns—irregular bedtimes, fragmented sleep, and unstable rhythms—are associated with a higher risk of 172 diseases across metabolic, neurological, cardiovascular and respiratory systems. Experts caution that correlation does not prove causation, but point to mechanisms like circadian misalignment and impaired immune/metabolic function; improving sleep through consistent routines, limiting late-night screens and caffeine, managing light exposure, and CBT-I are suggested avenues for better health.

Unraveling the Insomnia Puzzle: How Circadian Disruption Keeps the Brain Awake
health2 months ago

Unraveling the Insomnia Puzzle: How Circadian Disruption Keeps the Brain Awake

New research indicates that chronic insomnia may be caused by a disruption in the body's internal clock, leading to a flattened circadian rhythm of mental activity and delayed peak alertness, which keeps the brain in a heightened state of alertness at night. The study suggests that targeting the circadian system could offer new treatment avenues for insomnia.