Why do we seem to get sick more often in winter?
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Yes, colds and flu are more common in winter. Here's why
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冬は本当に病気になりやすいのでしょうか?
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Why We Get Sick in Winter The Reasons Explained Sure! #WinterSickness #ImmuneSupport #StayHealthy
この冬、風邪とインフルエンザを予防する10のヒント
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Do you often catch cold? #shorts
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Does cold weather impact how likely you are to get sick this winter?