tired woman sleeping on bed in bedroom
F8 studio/Shutterstock

WELLthier Living and Aging

Article Abstracts
Mar 18, 2022

WELLthier Living and Aging

Improved Sleep Can Boost the Immune System

Article Abstracts
Feb 16, 2026

The benefits of sleep are both preventative and restorative, yet a third of Americans aren’t getting the recommended seven to nine hours of sleep each night, estimates the Centers for Disease Control and Prevention. 

Sleep plays a critical role in supporting a healthy immune system, and a lack of it can increase your risk of infection. During sleep, the body produces proteins called cytokines that fight inflammation and infection. When the body is exposed to infectious pathogens, has inflammation, or experiences chronic stress, it increases production of cytokines to fight illness. Lack of sleep hinders this immune response, making it more difficult for the body to fight off infections.

The Institute for Functional Medicine recommends improving sleep by making simple changes in daily routine, such as:

  • Maintaining a consistent sleep schedule
  • Taking in more daylight and limiting artificial light exposure
  • Staying active
  • Avoiding caffeine, alcohol, and large meals before bed
  • Taking naps
  • Practicing mindfulness or finding other ways to unwind
  • Improving sleep environment to make sure it is cool, dark, quiet, and comfortable.

If sleep disturbances persist after making these changes, patients should consider seeing a doctor to rule out any underlying health conditions.

 

 

REFERENCES

The Institute for Functional Medicine. (2020). Good sleep hygiene may help protect against infectious diseases. Retrieved from https://www.ifm.org/news-insights/good-sleep-hygiene-may-help-protect-infectious-diseases/

Other Articles in this category

Feb 13, 2026 | WELLthier Living and Aging
Interest in biological age testing is growing quickly, but experts caution that the science is still evolving. In a February 2026 editorial, The…
Feb 12, 2026 | WELLthier Living and Aging
A 2026 study published in JAMA reports caffeine may have a protective effect against dementia and other forms of cognitive decline. In a large…
Jan 26, 2026 | WELLthier Living and Aging
A 2026 randomized clinical trial published in JAMA Psychiatry examined whether yoga, when added to standard medical treatment, could help people…
Jan 21, 2026 | WELLthier Living and Aging
A 2025 study published in SLEEP Advances examined the relationship between insufficient sleep and life expectancy across U.S. counties using data…

Customer Service

KnoWEwell News Updates