Weekend Lie-Ins May Lower Blood Pressure

A new study suggests a weekend lie-in may be good for your heart. Research presented at the European Society of Cardiology congress in Munich found moderate catch-up sleep is linked to lower blood pressure.

Globally, more than 1.3 billion people have hypertension. This condition raises the risk of heart attack, stroke, kidney disease, and early death.

The Study's Findings

The research analyzed 40,000 adults in South Korea over seven years. It defined weekend catch-up sleep as the difference between weekend and weekday sleep duration.

Overall, weekend catch-up sleep was associated with a 6% reduction in the odds of hypertension. A slightly greater benefit was seen in people considered physically inactive. They were 6.9% less likely to have hypertension if they had a weekend lie-in.

Dr. Nawon Lee of Korea University in Seoul, the study author, identified an ideal benchmark. "Analysis identified the 1hr 27min benchmark as the ideal amount of catch-up sleep," Lee said. Someone getting this amount of extra sleep would be 9% less likely to have high blood pressure.

Expert Commentary and Caveats

Dr. Lee explained the potential mechanism. "Not getting enough sleep puts extra stress on the body," she said. "It keeps the heart and blood vessels working harder and can increase blood pressure."

She cautioned that too much sleep could be harmful. People getting more than four hours extra sleep at the weekend were at greater risk of hypertension. "When weekend catch-up sleep becomes excessive, the degree of sleep irregularity and circadian disruption may increase, which could offset that benefit," Lee added.

Dr. Sonya Babu-Narayan, a consultant cardiologist with the British Heart Foundation, commented on the findings. She was not involved in the research. "Many of us struggle to get enough sleep during the week due to work, family and social commitments," she said. "This study is not a green light for physical activity to take a back seat, but for now, perhaps we don’t need to feel guilty about getting up late at the weekend."

A Shift in Sleep Advice

For years, experts have warned that weekend lie-ins can disrupt the body's internal clock. Most still agree a regular bedtime is key. This new analysis provides a heartening caveat.

The study suggests people should no longer feel guilty about getting up late at the weekend. Other ways to avoid high blood pressure remain crucial. Staying active, maintaining a healthy weight, and eating well are still vital.

"People should not feel lazy or guilty for sleeping a little longer on the weekend," said Dr. Lee. "If they have not been able to get enough sleep during the week, some extra sleep on the weekend may simply be the body’s way of recovering." She concluded that keeping a regular sleep schedule is still important, but moderate catch-up sleep may be beneficial.