According to a study by the University of Cambridge involving 300,000 participants, sleeping between 7 and 9 hours a night reduces the risk of developing depression by 22%.
The sleepwhich has always been considered essential for physical and mental well-being, is confirmed as one of the key factors for prevent and manage depression. A study conducted by the University of Cambridge highlights how sleeping regularly between seven and nine hours a night reduces the risk of developing depression by 22%.including those resistant to treatments.
Experts point out that sleep is not a passive process: during rest the brain consolidates memories, processes emotional experiences and helps the body to fight inflammation and disease. To understand this, the research involved around 300,000 participants from the UK Biobank initiative, including both people with recurrent depression and those who had never suffered from it.
The researchers identified seven healthy lifestyle habitsincluding adequate sleep, physical activity and strong social relationships, which together can reduce the risk of depression up to 57% for those who adopt them regularly. The analysis also looked at biological markers such as C-reactive protein, a marker of inflammation linked to depression, showing that a healthy lifestyle significantly improves these parameters.
The relationship between sleep and depression is complex
Dr. Barbara Sahakian, a psychologist and neuroscientist who led the study, highlights that sleep is particularly crucial for emotional regulation and mental well-being. Not only does it help the brain process stress and manage emotions, but it also improves memory and supports the immune system. For example, well-rested people are more resistant to diseases such as colds.
However the relation between sleep and depression is complex. According to expert Shannel Kassis Elhelou of the Pacific Neuroscience Institute, it is difficult to determine whether lack of sleep causes depression or whether depressive symptoms negatively affect sleep. People experiencing stressful situations, such as work or family problems, may find more difficult to fall asleep and maintain continuous rest.
For those suffering from insomnia or sleep disorders, strategies based on cognitive-behavioral therapy have proven effective. Techniques like management of negative thoughts and the adoption of one regular sleep routine they can significantly improve the quality of rest, contributing to general well-being and the prevention of depression. Let us always remember that sleep is not just a need, but a fundamental resource for living better.
