Confirmed by research results: “Bedtime” is best for heart health, not before 10pm as many people think.
A study of 88,000 people aged 43 to 79, published in the European Heart Journal, found that going to bed too late or going to bed too early (before 10pm) may increase your risk of cardiovascular disease.
The researchers collected data on the participants’ sleep behavior via wrist-mounted tracking devices for 7 days, as well as health and lifestyle data via questionnaires.

Participants were divided into four groups based on their bedtime:
- Group that went to bed before 10:00 PM.
- Group that went to bed between 10:00 PM and 10:59 PM.
- The group that went to bed between 11:00 PM and midnight
- Group that went to bed after midnight
Over the six-year study period, 3.6% of participants (3,172 people) developed cardiovascular disease, including events such as stroke, heart failure, heart attack, and chronic ischemic heart disease.
The study found that those who went to bed after midnight had the highest rates of heart disease, with a 25% increased risk of heart disease compared to those who went to bed between 10:00 p.m. and 10:59 p.m. Those who went to bed before 10:00 p.m. had a 24% increased risk, and those who went to bed between 11:00 p.m. and midnight had a 12% increased risk.
Research has found that people who sleep between 10:00 p.m. and 10:59 p.m. have the lowest rates of heart disease, which could be the best time to protect heart health.
Dr David Planes, from the University of Exeter, UK, an author of the study, said: “The research team found that going to bed too late or too early (before 10pm) increases the risk of cardiovascular disease. Going to bed too early or too late can disrupt the body’s circadian rhythms, affecting sleep and increasing the risk of cardiovascular disease.”
Quality sleep is important for health.
“Good quality sleep is the foundation of overall health. Even if you eat well and exercise regularly, if you don’t get enough sleep, your health is still at risk,” says Dr. Abhinav Singh, director of the Indiana Sleep Center and an expert with the Sleep Foundation.
During non-dreaming (NREM) sleep, your heart rate slows, blood pressure drops, and breathing steadys, which reduces stress on your heart and helps it recover from the stresses of the เล่น UFABET ผ่านมือถือ สะดวกทุกที่ ทุกเวลา day. As a result, sleep problems are linked to cardiovascular health problems, such as high blood pressure, high cholesterol, heart attack, obesity, diabetes, and stroke.
Dr. Davis also stated that the results of this study could not clearly show a causal relationship between bedtime and heart disease risk, but sleep schedule may be a factor related to cardiovascular disease risk. If a similar study were to conclude in the future, it may be possible to reduce the risk of heart disease by adjusting sleep time.