If you love sleeping in on the weekends, you're not alone.
Previous studies have found a U‐shaped relationship between mortality and (weekday) sleep duration.
"Apparently, sleeping in in on the weekends can be a real help", Akerstedt told CNN. A cohort of 43,880 subjects was followed for 13 years through record?linkages. That's a rate of about six deaths per 1,000 people per year. By comparison, the world mortality rate in 2010 was almost eight in 1,000. The adults in the study were grouped by sleep duration. People who slept too much, regularly conking out for eight hours or longer a night, also had a worse mortality rate. "This suggests that short weekday sleep may be compensated for during the weekend".
For people under the age of 65, getting five hours of sleep or less nightly during the week was connected with a 50 percent higher likelihood of death compared to getting the recommended seven hours of sleep.
People who get too little sleep are at a significantly greater risk of dying early compared to those who are well-rested. Lack of sleep can have dire consequences for your health. Researchers say that older people need less sleep and they also sleep more during the week.
Once factors such as gender, body mass index, smoking, physical activity and shift work, were taken into account, the results revealed that those under the age of 65 who got five hours of sleep or under that amount seven days a week had a 65 per cent higher mortality rate than those getting six or seven hours' sleep every day. "Sleeping less than seven hours per night on a regular basis is associated with adverse health outcomes", the academy wrote in a consensus statement. It is otherwise impractical to accumulate data at such a scale.