Health & Body
Why Do We Catch More Colds and Flu in Winter? The Main Causes
Colds and flu rise in winter because people crowd indoors, dry air helps viruses last, and cold air weakens nose defenses. See what lowers your risk.
Space, Earth and the natural world, explained.
Colds and flu rise in winter because people crowd indoors, dry air helps viruses last, and cold air weakens nose defenses. See what lowers your risk.
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