Winter doesn’t make you sick by magic. What actually happens is that habits deteriorate: less daylight, less sleep, more stress, a diet that’s richer but poorer in nutrients, and behind all of that, a weakened microbiome. When gut flora loses diversity, immunity follows the same path: fewer active defense cells, a less effective intestinal barrier, higher levels of inflammation. The result? More frequent infections and slower recovery. So the real problem isn’t “winter” itself, but the combination of factors that weakens the body’s baseline resilience. And if those levers aren’t corrected, no supplement routine can truly make a difference.
Immunity routine: how to strengthen your natural defenses?