Meanwhile, the quality and duration of sleep have a huge impact on our physical and mental health. Chronic sleep deprivation can have serious consequences.
How does sleep affect immunity?
The immune system, which protects us from infections, needs an adequate amount of sleep to function properly. During nighttime rest, the body produces cytokines, proteins that help fight inflammation. People who regularly sleep less than 6–7 hours a day are more susceptible to colds, flu and other infections.
Lack of sleep can also affect the number of T lymphocytes—immune cells that destroy virus-infected cells and cancer cells. What does this mean? Chronic insufficient sleep and persistent fatigue also increase the risk of developing chronic diseases.
Can sleep help control weight?
Yes. Sleep has a huge impact on hormonal balance, which is one of the factors regulating appetite and metabolism. Sleep that is too short or frequently interrupted can disrupt the balance of hormones responsible for feelings of satiety and hunger. Sleep-deprived people may struggle with increased appetite and cravings for high-calorie, fatty and sweet foods.
Moreover, lack of sleep can change the body's sensitivity to insulin, thereby increasing the risk of insulin resistance and type 2 diabetes. If the body does not have enough time to regenerate properly, it has more difficulty carrying out metabolic processes correctly. Regular, high-quality sleep also helps maintain normal blood glucose levels. It also affects energy levels. A well-rested person generally has more strength and motivation to act, making it easier to engage in physical activity and burn calories during the day.
What significance does sleep have for mental health?
Quality nighttime rest is essential for the proper functioning of the brain. It is during sleep that the mind processes all the information collected throughout the day, works through emotions and gets rid of “unnecessary” data. Lack of sleep significantly reduces concentration, weakens creativity, negatively affects memory and slows reactions. Equally serious consequences occur in the emotional sphere. Chronic sleep deprivation increases the risk of anxiety and depression.
Sleep disorders can be both a symptom and a cause of many mental health problems. Sleep helps relieve the nervous system and supports the mechanisms that regulate its functioning. As a result, it increases mental resilience and cognitive abilities, which in turn translates into better coping with stress and everyday challenges.
How can you improve sleep quality?
To rest better, you do not need to revolutionize your lifestyle. A few small changes are enough. Above all, it is worth maintaining a regular circadian rhythm—that is, going to bed and getting up at similar times every day. Before going to bed, it is a good idea to put away your phone and pick up a book, allowing your eyes to rest from the screen.
There are also herbs and dietary supplements that can be used to improve the process of falling asleep. Apteka dla Rodziny provides more information about them.