Answered from cited sources · retrieved September 20, 2026
how to boost your immune system
You can support your immune system by practicing healthy daily habits like eating a balanced diet, exercising regularly, getting enough sleep, and staying up to date on vaccinations.
- Maintain a Nutritious Diet. Eat a variety of whole foods, including fruits, vegetables, lean proteins, and whole grains, to provide the nutrients necessary for immune cells to function properly. Limit processed foods, added sugars, and excessive alcohol.
- Stay Physically Active. Engage in regular, moderate-intensity exercise, such as brisk walking or swimming, to improve immune surveillance and reduce inflammation. Aim for at least 150 minutes of moderate activity per week.
- Get Adequate Sleep. Prioritize 7 to 8 hours of quality sleep each night to allow the body to recharge and support immune responses. Poor sleep can weaken defenses and reduce the effectiveness of vaccines.
- Stay Up to Date on Vaccines. Vaccines train your immune system to recognize and fight specific pathogens without the risk of a full-blown infection. Keep current with all recommended immunizations.
Sources
- Support Your Immune Health | Respiratory Illnesses | CDCcdc.gov · published September 8, 2026
- How to boost your immune systemhealth.harvard.edu · published March 28, 2024
- What can you do to improve your immune system? - Harvard Healthhealth.harvard.edu · published September 19, 2016
- Healthy Habits: Enhancing Immunitycdc.gov · published May 15, 2024
- How to boost your immune system: 6 proven tips | Kaiser Permanentehealthy.kaiserpermanente.org · published July 11, 2025
- Understanding Immune System Healthmayoclinic.org
- How to Support Your Immune System | Sutter Healthsutterhealth.org · published July 7, 2026
- From mindset to microbiome, exercise and diet, here’s how to upgrade your immune system | New Scientistnewscientist.com · published December 22, 2025
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