Optimistic people make nights better and have less risk of insomnia.
One in three people suffer from sleep disorders in France. To sleep better, it is regularly recommended to play sports, avoid excitants after a certain time or not to use screens before bedtime. A new study says our behavior could affect our sleep quality: optimistic people would sleep better.
More than 3,500 participants
In Behavorial Medicine, the research team publishes the results of its work conducted with more than 3,500 participants between 2000 and 2006. They provided information on their sleep twice, 5 years apart. All also answered a questionnaire where they had to express their level of agreement with a series of statements using a scale of 1 to 5, starting from strongly disagree to completely agree. Among the proposed sentences, there was "I do not expect things to happen as I wish" or "I'm always optimistic about my future".
The researchers then determined the level of optimism of each of them: at each point increase, the sleep quality was improved by 78%. According to their findings, the most optimistic participants were 74% less likely to suffer from insomnia and were more likely to have 6 to 9 hours of sleep. "Optimistic people are more likely to interpret problems positively," says research director Dr. Hernandez, "it reduces anxiety and ruminations when falling asleep and during the sleep cycle."
A good sleep for good health
Poor sleep has health consequences. According to Inserm, sleeping less than 6 hours per night increases the risk of type 2 diabetes by 28%. This is not the only danger associated with restless nights: according to several researches, poor sleep can make you irritable, depressed, increases the risk of hypertension, weight gain or infection.