And there is a wealth of epidemiological evidence - that is, studies that followed human behavior and outcomes - suggesting that people who are more active overall tend to have lower incidences of both acute illnesses (like infections) and chronic ones (like cancer and type 2 diabetes). “Since stress negatively impacts our immune system, this is another way exercise can improve immune response,” says Yufang Lin, MD, an integrative medicine doctor at Cleveland Clinic in Ohio.Īnd while there is some evidence that very long or intense exercise sessions may suppress the immune system, making you more susceptible to illness and infection in the hours immediately after your workout, other evidence contradicts this, according to the aforementioned Frontiers in Immunology review. Physical activity increases the release of endorphins (a group of hormones that reduce pain and create feelings of pleasure), making it a great way to manage stress. Regular exercise lowers your risk of developing chronic diseases (like obesity, type 2 diabetes, and heart disease), as well as viral and bacterial infections, according to a review published in the April 2018 Frontiers in Immunology. RELATED: How Your Immune System Fights Off Germs and Other Potential Risks to Your Healthġ. The best way you can ensure this happens is to practice the good-for-you behaviors your immune system runs on every day. To best protect your body from harm, every component of your immune system needs to perform exactly according to plan. You want every part to perform exactly according to the score. You don’t necessarily want one musician to perform at double speed or one instrument to suddenly produce sound at twice the volume it usually does. For the best performance, you want every instrument and every musician in the orchestra to perform at their best. Think of the immune system as an orchestra. This complex system comprises the skin cells, blood, bone marrow, tissues, and organs that - when working the way they should - protect your body against potentially harmful pathogens (like bacteria and viruses), and limit damage from noninfectious agents (like sunburn or cancer), according to the National Institutes of Health (NIH). Put simply, your immune system defends your body against illness and disease.
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