Daily outdoor time is essential for health, ideally between 11 a.m. and 3 p.m. when sunlight is strongest. Yet, wearing a scarf isn't just for cold weather—it's a smart immunity strategy.
Here's why:
A scarf keeps your airways (throat, nose, and lungs) warm. Cold air constricts blood vessels in these areas, limiting lymphocyte delivery—crucial immune cells that fight viruses. This reduction allows pathogens to multiply more easily.
This evidence-based tip strengthens your defenses. Discover 33 more winter immunity boosters in the February issue of Santé magazine.
Read also: 25 ways to wear your scarf
