World Sleep Day 2020: What Is The Link Between Sleep And Immunity?

If you needed another reason to get a night of good sleep, this might be it.

Tavishi Dogra
Written by: Tavishi DograUpdated at: Mar 13, 2020 10:34 IST
World Sleep Day 2020: What Is The Link Between Sleep And Immunity?

World Sleep Day 2020: World Sleep Day is observed annually. This Day is observed on the Friday before the March Equinox. This year (2020) it is observed on 13th March to create awareness about the importance of proper sleep. Do you know that sleep helps improve the immune system? Various studies have described the advantages of a good night’s sleep, and now scientists from Germany have found that deep sleep increases immune cells also known as T cells. T cells are a variety of immune cells that fight against virus-infected cells such as HIV, flu, cancer cells and herpes. An author of the study, Stoyan Dimitrov, PhD researcher at the University of Tübingen found a new mechanism through which sleep can support the immune system.

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Dr Srivatsa Lokeshwaran, Consultant - Interventional Pulmonology, Aster CMI Hospital shares that, sleep forms an essential part of your night and constitutes a significant one-third of your day to rejuvenate your body from all the stress and strain it goes through in the remaining two-thirds. On an average, it has been proven without a doubt that a normal human being needs at least 8 hours of sleep for a better lifespan and sleeping less than 6 hours a day increases the risk up by 12 per cent to a shorter lifespan.


The effect of T cells

  • T cells play an essential part in the body’s immune system. When cells in the body identify an infected cell, they stimulate integrins, a viscous type of protein, that then allows them to connect to and destroy infected cells. The scientists examined T cells from healthful aides who either slept or tarried up all night. They found that in the research, participants who rested, their T cells exhibited larger levels of integrin activation than in the T cells of those who were wide-awake.
  • The conclusions symbolise that sleep has the potential to increase T cell functioning. For people who get inadequate sleep, stress hormones may hinder the capacity of T cells to work as efficiently. Stress hormones fall while the body is sleeping. Raised levels of these elements might reduce the effectiveness of T cell immune response to eliminate pathogens.

Enough sleep?

  • Notwithstanding many pieces of research showing the adverse health consequences of inadequate sleep, experts believe that several people still don’t prioritize getting adequate sleep.
  • People must truly think about the value of sleep they’re getting because a lot of the enigmas are deliberately produced, and they just need to choose to prioritize an enough night’s sleep.
  • Having a relaxed, dark, calm bedroom atmosphere and reducing distress from electric appliances, pets is key behind it. Moreover, exercise can help in enough quality sleep. Regarding how much caffeine and alcohol you absorb is critical, too. Good sleep must be a preference because there’s so much going on in our lives, that except you consciously choose you’re going to make sufficient time for sleep, it’s just not going to happen.



According to researchers, a night of good sleep can reinforce your resistant system. As per a recent study, scientists mentioned about how quality sleep can sustain the T cells in your body. Do you know that these T cells fight off infection? Good sleep does this by improving the capacity of T cells to destroy and adhere to the cells tainted by pathogens and other viruses. As per researchers, there are both long-term and short-term health problems linked with poor sleep.

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