Everyday Habits That Genuinely Support Your Immune System
Beyond echinacea: sleep, diet, movement, and herbs that actually move the needle on immune function.
Immune function is built daily, not in a single supplement. The boring fundamentals carry most of the benefit.
Sleep
Less than 6 hours/night quadruples the risk of catching a cold after exposure. Sleep first.
Eat the rainbow
Phytonutrients from a wide range of colorful vegetables and fruits feed a resilient immune system.
Move daily
Moderate exercise (30 min most days) is one of the best-studied immune supports. Very heavy training without rest can transiently suppress immunity.
Vitamin D
Low vitamin D is associated with more frequent respiratory infections. Get sunlight when possible; many adults need 1,000–2,000 IU/day in winter.
Helpful herbs
Elderberry, garlic, ginger, thyme, and astragalus all have a place — modest but real benefit when used appropriately.
In the library
Sources & references
- Health Topics A–Z — US NIH National Center for Complementary and Integrative Health
- The Nutrition Source — Harvard T.H. Chan School of Public Health
