What Nurses Do to Avoid Getting Sick — And What You Should Do Too

Preventing illness starts with consistent, evidence-based daily habits that support the immune system. Proper hand hygiene remains one of the most effective defenses, washing with soap and water for at least 20 seconds or using hand sanitizer when needed. Avoiding contact with the eyes, nose, and mouth also reduces exposure to viruses. Just as important is sleep. Getting 7 to 9 hours each night, maintaining consistent sleep and wake times, and limiting screen exposure before bed allows the body to repair and regulate immune function effectively.

Nutrition, hydration, and movement play a critical role in keeping the body resilient. A balanced diet that includes protein, leafy greens, colorful fruits and vegetables, and omega 3 rich foods supports immune cell production and reduces inflammation. Fermented foods can further support gut health, which is closely tied to immunity. Staying well hydrated and engaging in moderate exercise most days, along with strength training a few times per week, helps maintain overall health while avoiding the negative effects of overtraining. Reducing sugar, processed foods, and excessive alcohol intake also strengthens the body’s natural defenses.

Preventative care and environment matter just as much as daily habits. Managing stress through simple practices like walking, breathing exercises, or staying socially connected can improve immune resilience. Keeping vaccinations up to date, maintaining routine medical and dental care, and managing chronic conditions all help reduce the risk of serious illness. Regularly disinfecting high touch surfaces, improving indoor air quality, and staying home when sick further limit exposure and spread. When appropriate, targeted supplementation such as vitamin D or short term zinc may offer additional support, but should always be guided by a healthcare provider.