Eleven of the most important ways to maintain a healthy
immune system include:
1. Adequate exposure to sunlight
2. A good amount of sleep
3. Moderate-intensity exercise
4. Reduced carbohydrate consumption
5. Fasting
6. Fixing micronutrient deficiencies
7. Reduce stress
8. Frequent exposure to pathogens
9. Healthy gut microbiome
10. Removal of toxins
11. Medicinal mushrooms

Source: Eashwarran Kohilathas