How Sleep Deprivation Impact On Your Immunity

Sleep Deprivation Wrecks Your Immunity

Key takeaways

  • Sleep strengthens the immune system.  
  • During sleep, the body produces cytokines that help combat infection and inflammation.
  • Sleep and immunity are bidirectionally linked, i.e.; immune system activation alters sleep, and sleep in turn affects innate and adaptive immunity.
  • Chronic sleep deprivation increases inflammation linked to various diseases, including cardiovascular diseases, arthritis, and diabetes.  

"A good laugh and a long sleep are the best cures in the doctor's book." - Irish Proverb. Yes! Like having balanced, nutritious food, drinking water, and exercising regularly, getting quality sleep is an unavoidable component of overall health.

Sleep is essential for maintaining bodily functions. It helps repair and rejuvenate cells, tissues, and organs and is crucial for growth hormone release, maintaining bodily functions, and enhancing brain function, including memory consolidation, learning, problem-solving skills, and emotional regulation. Adequate sleep improves the body's ability to fight off illnesses and recover from sickness.

So, evaluate your sleep cycle if you’re always tired, irritable, forgetful, or not losing weight despite a calorie-deficit diet and exercise. Most adults need at least 7 hours of sleep each night. But, the pace of modern life barely gives you time to recoup. While this may be fine for a day or two, not getting enough sleep over time can lead to serious health problems and make preexisting health issues worse.

Sleep deprivation makes you feel tired or unrested during the day and topples numerous physiological functions, impacting both physical and mental health. It impairs the body's ability to produce cytokines and other immune-supporting molecules, weakening the immune response, making individuals more susceptible to infections, and slowing down recovery from illness. Chronic lack of sleep increases inflammation linked to various diseases, including cardiovascular diseases, arthritis, and diabetes.

Lack of sleep and headaches are common among those who are sleep-deprived. It perturbs your thinking, reaction, work, learning, and socializing. Also, your heart, circulatory, respiratory, immune system, and metabolism surely take its hit.

This article tells you why you should catch up on your sleep for better immunity. Run your eye over folks!

The link between sleep and immunity

The link between sleep and immunity
The link between sleep and immunity

Sleep plays a crucial role in maintaining and regulating the immune system. Sleep deprivation can compromise the immune response, making individuals more susceptible to infections and diseases.

Our immune system is fundamental to healing wounds, warding off infections, and protecting against chronic and life-threatening illnesses. Sleep and immunity are bidirectionally linked, i.e.; immune system activation alters sleep, and sleep in turn affects innate and adaptive immunity.

Prolonged sleep deficiency (e.g., short sleep duration, sleep disturbance) can lead to chronic, systemic low-grade inflammation and is associated with various diseases that have an inflammatory component, like diabetes, atherosclerosis, and neurodegeneration.

  • 15 years of research following a systems approach to neuroimmunology provide strong evidence that sleep enhances immune defense, supporting the popular wisdom that ‘sleep helps healing’.
  • Adequate sleep helps regulate inflammatory responses, reducing the risk of chronic inflammation.
  • Cytokines are crucial for fighting infections and promoting inflammation as part of the body's natural immune response. When a white blood cell detects a foreign pathogen, it releases cytokines, which act as messengers for the immune system, to signal other white blood cells to prepare for attack. Thus sleep deprivation can impact the body's ability to fight infections, viruses, and diseases. Interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF-alpha) are certain cytokines whose production and release increase during deep sleep.
  • Chemicals such as histamine, are involved in immune reactions, contributing to symptoms like swelling or redness.
  • Sleep is crucial for a healthy immune system. Getting enough high-quality sleep helps maintain a strong innate and adaptive immune defense, improves response to vaccines, and reduces the severity of allergic reactions. On the other hand, serious sleep issues such as insomnia, sleep apnea, and circadian rhythm disruption can disrupt the proper functioning of the immune system.
  • Sleep enhances T-cell (a type of white blood cell that plays a critical role in the immune response by directly attacking infected or cancerous cells) activity, improving the body’s ability to respond to infections.
  • Sleep regulates the production of hormones such as cortisol and melatonin, which impact immune function. Cortisol, the stress hormone, suppresses immune activity. Its levels are naturally lower during sleep, allowing the immune system to function more effectively.
  • Sleep plays a crucial role in determining the effectiveness of vaccines. Studies on vaccines for hepatitis and swine flu (H1N1) have shown that when individuals fail to sleep the night after receiving a vaccine, their immune response is compromised. Sometimes, this can diminish the vaccine's protective effects and necessitate a second dose.
  • Recent research has shown that a person's circadian rhythm regulates the body's response to allergens. Disruption of the circadian rhythm may increase the likelihood and severity of allergic reactions.
  • Sleep is essential for memory consolidation in the brain, and immunological memory formation, ensuring a quick response to previously encountered pathogens.
  • Quality sleep helps the immune system remain strong, better able to handle infections, and recover from illnesses while maintaining a balanced immune response to pathogens.
  • In short, the risk of infections is higher in people who sleep less than six or seven hours per night.
VALIAN-X
VALIAN-X

Impact of chronic sleep deprivation on long-term health

The recommended amount of sleep for most adults is seven to eight hours per night, while teenagers need nine to 10 hours and school-aged children may require 10 or more hours.

But hectic schedules just steal the time for your restful period.

  • Chronic sleep deprivation is the condition of not enough sleep over a long period. It can be primary (caused by insomnia or anxiety) or secondary (caused by another medical condition).
  • It significantly affects long-term health, impacting both physical and mental well-being. It is estimated that 50 to 70 million Americans chronically suffer from a disorder of sleep and wakefulness, hindering daily functioning and adversely affecting health and longevity.

The effect of sleep deprivation on physical health

  • The cumulative sleep deprivation effects on physical health are hypertension, diabetes, obesity, depression, heart attack, and stroke.
  • The studies suggest that sleep loss (less than 7 hours per night) may have wide-ranging effects on the cardiovascular, endocrine, immune, and nervous systems, including obesity in adults and children, diabetes and impaired glucose tolerance, cardiovascular disease, hypertension, anxiety symptoms, depressed mood, and alcohol use.
  • A weakened immune system due to persistent sleep loss can lead to a higher risk of chronic illnesses, including certain cancers and autoimmune diseases.
  • Poor sleep is associated with conditions like irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD), potentially due to increased inflammation and stress.

Sleep deprivation eurological effects

  • Chronic sleep deprivation is linked to an increased risk of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease.
  • Alertness, vigilance, simple attention, emotional perception, control, comprehension, and expression memory processing are degraded.
  • Executive functions' ability to focus attention while ignoring irrelevant information; planning and sequencing thoughts and behaviors; updating information as contingencies change; and inhibiting inappropriate thoughts or actions also gets affected.
  • It also contributes to mental health disorders, and hormonal imbalances and adversely impacts daily functioning and safety.
  • Chronic sleep deprivation accelerates the aging process, contributing to the premature appearance of age-related conditions and a higher risk of early death compared to those who get adequate sleep.

Tips for improving sleep and boosting immunity

Tips for improving sleep and boosting immunity
Tips for improving sleep and boosting immunity

Getting enough quality sleep each night is important for your immunity. The sleep habits you follow or the ‘sleep hygiene’, determine how well you sleep.

Here are some practical tips to create a conducive environment for sleep and develop habits that promote better sleep quality and overall well-being.

  • Investing in a supportive mattress and pillow helps ensure that your spine gets proper support to avoid aches and pains. The bedding and blankets should feel comfortable to touch and will help maintain a comfortable temperature during the night.
  • Go to bed and wake up regularly every day, even on weekends. Sleep discipline helps regulate your body’s internal clock (circadian rhythm).
  • Blackout curtains over your windows or a sleep mask over your eyes can block light and prevent it from interfering with your rest. Avoiding bright light can help you wind down and bolster the body’s production of melatonin, a hormone that promotes sleep.
  • Ensure your bedroom is cool, quiet, and dark. The ideal temperature for sleep is typically between 60-67°F (15-19°C). Use blackout curtains, earplugs, or a white noise machine if necessary.
  • Try to avoid long naps in the daytime. According to the Sleep Foundation, the best time to nap is shortly after lunch in the early afternoon, and the best nap length is around 20 minutes.
  • Quiet reading, low-impact stretching, soothing music, and relaxation exercises can set the right frame of mind for sleep.
  • Do not stress over sleep just focus on trying to relax. Controlled breathing, mindfulness meditation, progressive muscle relaxation, and guided imagery are examples of relaxation methods that can help ease you into sleep.
  • Avoid the blue light from electronic devices that can suppress your natural production of melatonin. Disconnect them for an hour or more before going to bed.
  • Daily exercise promotes energy use, regulates body temperature, and promotes solid sleep. Most experts advise against intense exercise close to bedtime as it can unsettle your body, preventing wind down.
  • Limit caffeinated drinks, including coffee, tea, and sodas after 2 p.m.
  • Alcohol affects the brain in ways that can lower sleep quality, making it best to avoid alcohol near bedtime.
  • Sleep disruptions like late dinners with fatty or spicy foods can be too heavy for the stomach to digest and cause sleep troubles.
  • Avoid smoking as nicotine is a stimulant, and evening nicotine use in particular has been found to disrupt sleep.
  • Melatonin supplements are commonly used to shorten the time it takes to fall asleep. Having chamomile tea and other supplements may be beneficial too. Always consult your healthcare provider before using them.
CALCOD
CALCOD

Conclusion

Sleep is crucial in numerous physiological functions, impacting physical and mental health. The repair and rejuvenation of cells, tissues, and organs, growth hormone, essential for muscle repair and overall growth, is predominantly released during sleep. Good sleep hygiene ensures physical, cognitive, and emotional well-being.

Sleep deprivation weakens the immune system by disrupting cytokine production, impairing T-cell function, causing hormonal imbalances, reducing immunological memory, increasing inflammation, lowering antibody production, and leading to overall immune suppression.

A well-rested body will have a better innate and adaptive immune response and improve overall immune resilience. Prioritizing adequate sleep is essential for maintaining a robust and effective immune system. So get your “beauty sleep” today and rejuvenate your body inside out! Sleep like a baby.

Meet our expert

Dr. Iunis Galina Ivanovna

Dr. Iunis Galina Ivanovna

Neurologist

Ukraine

Dr. Iunis Galina Ivanovna

Meet our expert

Dr. Iunis Galina Ivanovna is a Neurologist from Ukraine. She graduated from the Luhansk State Medical University in 1998, and has been in the medical profession since then. In the course of her career as a neurologist, Dr. Ivanovna has gathered extensive experience and expertise having handled a wide variety of cases.

Rate our article

We'd love to know!

  • 0
  • 0
  • 0
  • 0

How was the experience with article?

We'd love to know!

Current Version

Apr 08, 2024

Written By

Dr. Iunis Galina Ivanovna

Dec 15, 2022

Written By

Dr. Iunis Galina Ivanovna

Related articles

See All

Frequently asked questions

Insomnia and sleep deprivation are closely related but are not the same. Chronic sleep deprivation is a condition of consistently insufficient sleep over an extended period forming a continuous pattern of inadequate sleep.  Here the individual consistently gets less sleep than needed for their age and health requirements. It can result from lifestyle choices, work demands, medical conditions, mental health issues, or environmental factors. Every human being experiences sleep deprivation at some point in their life. 

Yes, a lack of sleep can contribute to hair loss. Estrogen promotes the hair follicle growth (anagen) phase and melatonin helps biological rhythms and sleep-wake cycles. Not getting enough sleep can mess with your body's hormones such as estrogen and melatonin

Chronic stress, late-night blue light from screens, and untreated insomnia increase the production of cortisol, the body’s primary stress hormone. Elevated cortisol levels can disrupt the hair growth cycle, pushing hair follicles into a premature shedding phase. Sleep deprivation also weakens the immune system, which potentially exacerbates autoimmune conditions like alopecia areata, causing shedding. 

Bedtime is an important factor in maintaining skin health. Regular late bedtime damages the skin barrier and skin structure and reduces the diversity and composition of the facial bacterial microbiome.  It also increases stress (physical and emotional) and the cortisol levels in the body shoot up causing overactive sebaceous glands in the skin. This cortisol surge could put you at risk for more acne.

Late sleep also promotes inflammation, which increases acne and the existing breakouts worse. Poor sleep quality can weaken the immune system, reducing the body’s ability to fight off bacteria that cause acne. Sleeping late can also cause poor food habits and skincare, which ultimately degrades skin health.