FLU SHOTS

[sally]

Also Sally, another reason cold weather is associated with cold and flu season is because people start up their heaters which generally dries out the sinus making it more susceptible to infection.

That makes sense to me, also in winter the air tends to be less humid anyway. Your lips get chapped, your nose dries up and your airway becomes cold while outside.

I still don't buy the theory about people being indoors more during winter is what spreads it. I guess if I get really bored I could go research it.