“In what researchers are calling a scientific breakthrough, scientists behind a new study may have found the biological reason we get more respiratory illnesses in winter. It turns out the cold air itself damages the immune response occurring in the nose.” [Story]

Reducing the temperature inside the nose by as little as 9 degrees Fahrenheit (5 degrees Celsius) kills nearly 50% of the billions of virus and bacteria-fighting cells in the nostrils, according to the study published Tuesday in The Journal of Allergy and Clinical Immunology.

“What we found is that when you’re exposed to cold air, the temperature in your nose can drop by as much as 9 degrees Fahrenheit. And that’s enough to essentially knock out all three of those immune advantages that the nose has.”

“Not only do masks protect you from the direct inhalation of viruses, but it’s also like wearing a sweater on your nose […] The warmer you can keep the intranasal environment, the better this innate immune defense mechanism will be able to work. Maybe yet another reason to wear masks!”

On the COVID Caution Spectrum I’m probably an 11 out of 10. And fortunate in my circumstances so I can avoid unnecessary exposure. For the last two years I’ve listened as friends and family lectured me on the importance of not letting “some virus” control your life. “You gotta live your life, dude.”

A philosophy I have yet to hear in any of the countless interviews with people with severe and/or protracted cases. These are mostly of the I’ve-never-been-so-sick-get-vaccinated variety. Where are the folks on oxygen saying, “I almost died but, hey, you gotta live your life, right?”