Midlife Sleep Irregularity Linked to Higher Risk of Major Cardiac Events
10 hours ago
- #Sleep Irregularity
- #Cardiovascular Risk
- #Midlife Health
- Irregular sleep timing (bedtime and sleep midpoint) increases the risk of major adverse cardiac events (MACE) in individuals with sleep durations under eight hours.
- The study involved 3,231 midlife participants from the Northern Finland Birth Cohort 1966, followed for 10 years using wearable devices to assess sleep regularity.
- Participants with irregular bedtimes had a 2.01-fold higher MACE risk, and those with irregular sleep midpoints had a 2.00-fold higher risk, compared to those with regular sleep timing.
- No significant association was found between irregular wake-up time and increased MACE risk, highlighting the specific importance of bedtime consistency.
- The findings emphasize consistent sleep behavior, particularly regular bedtimes, as a potential target for cardiovascular health promotion in midlife adults.