Winter time is cold and flu season – but why?

It typically begins in October and peaks between December and February (in the northern hemisphere)

Winter time is cold and flu season – but why?
  1. Cold air helps the flu virus to survive longer outside of the human body.
  2. The virus does a better job of circulating in low humidity.
  3. In addition cold, dry air leaves your mucus membranes in a more vulnerable condition.
  4. We also spend more time indoors (in dry air) and have closer contact with each other, which makes it easier for the virus to spread.
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