Why Is Sleep Important?
Why is sleep important?
We spend nearly a third of our lives asleep, yet its importance is often taken for granted. Sleep is a biological force that discreetly works its influence on our health—mental, emotional, physical, spiritual, and even financial. If not managed properly, bad sleep habits can have severe impacts on our health and wellbeing. In fact, studies show that staying up late to finish work is one of the worst things you can do as it will clearly decrease your productivity the next day. Whether you are an attorney, a teacher or a professional basketball player, better sleep tonight improves your performance tomorrow.
Let’s talk about some of the effects that bad sleep can cause:
Short-term health impact
Cognitive Performance
Ever feel like your brain is running on fumes after a sleepless night? It's not just your imagination. Sleep deprivation impairs memory, focus, and learning, making it harder to concentrate, solve problems, and make decisions. However, if you sleep well your thinking is clearer, your reflexes faster and your judgment sharper. Think of sleep as the ultimate brainpower booster.
Physical Health
Sleep is like a rejuvenating spa for your body. During sleep, your body repairs tissues, builds muscle, and strengthens your immune system. Skimp on sleep, and you're more susceptible to infections and injuries.
Mood and Emotion
Sleep deprivation can be a major mood grinch. It can lead to irritability, anxiety, and even depression. Conversely, getting enough sleep can boost your mood, improve emotional regulation, and leave you feeling energized, optimistic, and better capable of handling life stress.
Long-term health impacts
Chronic Disease Risk
Sleep is important to prevent chronic diseases like heart disease, stroke, obesity, and even some cancers. Lack of sleep is also found to increase risk of diabetes, high blood pressure and decreased immune function. Chronic sleep deprivation disrupts hormones, increases inflammation, impairs healthy metabolic function, paving the way for these conditions.
Brain Health
Sleep is crucial for brain health, especially as we age. Studies show that chronic sleep deprivation can increase the risk of cognitive decline, Alzheimer's disease, Parkinson’s disease and other neurodegenerative disorders. Prioritizing sleep is five star investment in your brain's future.
Mental Health
Sleep deprivation is a major risk factor for mental health issues like anxiety, depression and substance use. Getting enough sleep helps regulate mood, manage stress, control impulses and improve emotional resilience. Think of sleep as a natural antidepressant.
Higher Mortality Risk
Sleep deprivation is linked to a higher mortality risk. An individual that sleeps on average less than six hours per night has a 13% higher mortality risk than someone sleeping between seven and nine hours. However, an individual sleeping between six to seven hours per day still has a 7% higher mortality risk
Impact on relationships
Lack of sleep can also influence your relationships. It can make you irritable and short-tempered that can have an effect on how your close ones and colleagues perceive you. Ever have a co-worker who just wasn’t “reading the room”? They may have just been sleep deprived.
Personal impact aside, did you know that the quality of your sleep has an impact on the US economy? The United States alone sustains approximately $411 billion a year due to insufficient sleep. That comes out to be about 1.23 million working days. According to a study, if individuals that slept under six hours started sleeping six to seven hours then this could boost the economy by $226.4 billion.
Sleep is not a luxury for ourselves and our communities; it's a necessity. It's the foundation for our physical, mental, emotional, and financial well-being. By prioritizing sleep, we invest in our health, relationships, our neighborhoods and even our wallets.
References:
Hua J, Jiang H, Wang H, Fang Q. Sleep Duration and the Risk of Metabolic Syndrome in Adults: A Systematic Review and Meta-Analysis. Front Neurol. 2021 Feb 18;12:635564. doi: 10.3389/fneur.2021.635564. PMID: 33679592; PMCID: PMC7935510.
Hafner, Marco, Martin Stepanek, Jirka Taylor, Wendy M. Troxel, and Christian Van Stolk, Why sleep matters — the economic costs of insufficient sleep: A cross-country comparative analysis. Santa Monica, CA: RAND Corporation, 2016. https://www.rand.org/pubs/research_reports/RR1791.html.
Palmer, C. A., Bower, J. L., Cho, K. W., Clementi, M. A., Lau, S., Oosterhoff, B., & Alfano, C. A. (2023). Sleep loss and emotion: A systematic review and meta-analysis of over 50 years of experimental research. Psychological Bulletin.
He, M., Deng, X., Zhu, Y. et al. The relationship between sleep duration and all-cause mortality in the older people: an updated and dose-response meta-analysis. BMC Public Health 20, 1179 (2020). https://doi.org/10.1186/s12889-020-09275-3
Lee DY, Jung I, Park SY, Yu JH, Seo JA, Kim KJ, Kim NH, Yoo HJ, Kim SG, Choi KM, Baik SH, Lee SK, Shin C, Kim NH. Sleep Duration and the Risk of Type 2 Diabetes: A Community-Based Cohort Study with a 16-Year Follow-up. Endocrinol Metab (Seoul). 2023 Feb;38(1):146-155. doi: 10.3803/EnM.2022.1582. Epub 2023 Feb 6. PMID: 36740966; PMCID: PMC10008656.
Gaur A, Kaliappan A, Balan Y, Sakthivadivel V, Medala K, Umesh M. Sleep and Alzheimer: The Link. Maedica (Bucur). 2022 Mar;17(1):177-185. doi: 10.26574/maedica.2022.17.1.177. PMID: 35733758; PMCID: PMC9168575.
Yuen KM, Strang A, Sullivan SS. Youth, mental health, and sleep. J Clin Sleep Med. 2022 Aug 1;18(8):2087-2088. doi: 10.5664/jcsm.10104. PMID: 35632984; PMCID: PMC9340595