Sleep is really important for us. But today in this express world, people do not get enough sleep. They stay up late at night, doomscrolling their phones or working on their computers. Most of the people spend a lot of time on social media. Because of this, a lot of people do not sleep much. People try to deal with stress and anxiety in many ways. They often forget about sleep. Sleep is not about resting. Psychology and neuroscience tell us that “sleep helps us feel better and think clearly”. It is really important for our health and emotional balance. When sleep is affected, mental well-being also gets affected.
Relationship of Sleep and the Brain
Sleep is very important for our brains. When we sleep, our brain is doing a lot of things. It is looking at the things that happened during the day. It is helping us to remember them. This happens when we are asleep and when we are dreaming, which is called REM sleep. Sleep helps our brains deal with our emotions and stress. Walker said in 2017 that sleep helps our brain reset so it can handle emotions and stress better. If we do not sleep enough, our brain has no time to deal with emotions. This can make us feel grumpy. We have a hard time paying attention. We can also feel really upset and not be able to control our emotions. Sleep is important for our brains to work well.
For example, after poor sleep, people may feel overwhelmed by small problems. Looking scientifically, it is because of a lack of sleep that reduces the brain’s capacity to regulate the amygdala, the region in the brain responsible for processing our fears and emotions (Yoo et al., 2007).
Read More: What to do when you are feeling overwhelmed
Sleep and Emotional Regulation: An Overview
Sleep is more important for our mental health, which helps us to handle our emotions in a better way. When we get enough sleep, we can handle tough situations more easily. We can think clearly. Stay calm. On the other hand, when we do not get enough sleep, we get too emotional and upset very easily. We may lose our patience and get annoyed with little things. Sleep helps us with regulation. Without proper sleep, our emotions get out of our control, and we might react badly. Sleep is essential for keeping our emotions in check and helping us stay calm and way more patient.
A study on mental health shows that people who do not get the required amount of sleep have mood swings, low confidence, and high emotional exhaustion (Pilcher & Huffcutt, 1996). This becomes one of the causes for mental health issues such as depression and anxiety. Hence, sleep acts as a barrier that helps an individual to process his/her emotions.
Read More: How Emotional Stress Affects Sleep: Insights from Neuroscience Research
Sleep and Anxiety: An Overview
Sleep and anxiety are really closely linked. Anxiety makes it difficult for people to sleep. When you do not sleep well, it makes you worry more, feel restless and get nervous. For example, Harvey said in 2008 that people with anxiety problems often have thoughts that race at night. This means they have trouble sleeping and their sleep is not good. Sleep problems and anxiety just make each other worse.
Lack of sleep increases somatic arousal, making the body feel constantly alert. This somatic arousal can lead to anxiety symptoms, creating a loop where anxiety disturbs sleep and poor sleep boosts anxiety. Enhancing sleep reduces anxiety symptoms and improves emotional resilience.
Read More: The Sleep Anxiety Spiral: Why Worrying About Sleep Makes It Worse
Sleep and Depression
Sleep problems are really common in people who are depressed. People who are dealing with depression might have less sleep time, they might wake up too early, or they might sleep too much. Some studies have found that sleep issues are not something that happens when you are depressed, but they can also make depression worse. For example, some researchers, like Baglioni and others, found this out back in 2011. Depression and sleep are connected. Lack of sleep can cause depression.
Lack of sleep can have an effect on neurotransmitters such as serotonin and dopamine (chemical messengers), which are connected to mood. When they are affected, individuals may experience a change in mood such as sadness, lack of motivation, and low mood. Hence, retrieving healthy sleep patterns has been found to improve mood and reduce depressive symptoms, which highlights the importance of sleep in our daily lives.
Cognitive Functioning and Mental Well-Being
Sleep influences the cognitive functioning of the brain. Attention, memory, decision-making, and problem-solving abilities are affected by poor sleep quality. When individuals do not have proper sleep, they may struggle to focus, forget important information, and have poor decision making skill. As a result, they can increase stress and frustration, especially in studies or working environments. Over time, repeated cognitive failures may reduce self-confidence and increase feelings of helplessness, contributing to mental health difficulties (Killgore, 2010).
Read More: Psychologists Speak on How Much Sleep We Actually Need
Stress, Sleep, and Coping Ability
Sleep is important for handling stress. When we sleep, our body removes cortisol that makes us feel stressed, which inturn helps us feel more energetic and focused. If we do not sleep well, our body remains alert all the time, which inturn makes us feel tired and overwhelmed all the time. Sleep helps our body, mind and soul feel better. Without sleep, we feel like we are always on edge and exhausted, and that is because our sleep is not helping to reduce the stress we feel.
If a person who sleeps less before an exam may feel more anxious and less capable of coping with the situation. Required amount of sleep improves resilience and helps individuals to handle stressful situations more calmly and patiently (Meerlo et al., 2008).
The Vicious Cycle of Sleep and Mental Health
Sleep and mental health are connected to each other. Mental health issues can disturb our sleep. When we do not sleep well, it can make our mental health issues even worse. This can keep happening over and over again as a loop if we do not take appropriate actions to improve. When we regulate our sleep, it can really help us feel better with things like depression, anxiety and stress. Sleep and mental health are like two things that influence each other all the time. Fixing our sleep can make a difference in how we feel when we are struggling with mental health issues like depression and anxiety.
Psychologists find improvement in sleep patterns as an important part of mental health interventions. They even suggest that their clients regularise sleep as a means to improve mental health conditions. Simple alterations such as maintaining a regular sleep schedule, reducing screen time before bed, and planning the day can improve both sleep and mental well-being.
Read More: Sleeping well can fortify your Mental Resilience
Conclusion
Overall, sleep plays a major role in physical and mental health. It supports emotional well-being, reduces anxiety and depression, and strengthens stress-coping abilities in an individual. Lack of sleep disrupts these processes, increasing the probability of psychological distress. Doctors recommend an average of 6-8 hours of sleep per day. Instead of compromising with sleep all the time, it should be recognised as the centre of the system in mental well-being. Promoting healthy sleep habits can serve as a powerful tool for improving mental health and overall quality of an individual’s life.
References +
Baglioni, C., Battagliese, G., Feige, B., Spiegelhalder, K., Nissen, C., Voderholzer, U., Lombardo, C., & Riemann, D. (2011). Insomnia as a predictor of depression: A meta-analytic evaluation. Journal of Affective Disorders, 135(1–3), 10–19. https://doi.org/10.1016/j.jad.2011.01.011
Harvey, A. G. (2008). Insomnia, psychiatric disorders, and the transdiagnostic perspective. Current Directions in Psychological Science, 17(5), 299–303. https://doi.org/10.1111/j.1467- 8721.2008.00594.x
Killgore, W. D. S. (2010). Effects of sleep deprivation on cognition. Progress in Brain Research, 185, 105–129. https://doi.org/10.1016/B978-0-444-53702-7.00007-5
Meerlo, P., Sgoifo, A., & Suchecki, D. (2008). Restricted and disrupted sleep: Effects on autonomic function, neuroendocrine stress systems and stress responsivity. Sleep Medicine Reviews, 12(3), 197–210. https://doi.org/10.1016/j.smrv.2007.07.007
Walker, M. (2017). Why we sleep: Unlocking the power of sleep and dreams.
Yoo, S. S., Gujar, N., Hu, P., Jolesz, F. A., & Walker, M. P. (2007). The human emotional brain without sleep. Current Biology, 17(20), R877–R878. https://doi.org/10.1016/j.cub.2007.08.007
