Possibly have you formerly suffered through a cold? Perhaps did you recover from the virus? Of course you recovered! You cannot heal a common cold itself, but your system generally creates resistance to any cold infection within several weeks. We call that being healed by your own immune system!

Parents have actually already had a great deal of the rhinitis infections. Parents have developed resistance to the viruses they have had. So there are not quite as many cold infections around for adults to acquire. That is why parents only acquire a few colds each year and children acquire a dozen colds annually.
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