littlebabyjesus
one of Maxwell's demons
Doesn't help with vaping, though, cos it doesn't explain why smoking causes this, only that it causes it.Susceptibility Analysis of COVID-19 in Smokers Based on ACE2
Background: Cigarette smoking (CS) is a global public health problem and a high-risk factor for various diseases. In December 2019, a novel coronavirus (HCoV-19) was identified in Wuhan, China. Because ACE2 has been identified as a receptor for HCoV-19, we hypothesize that CS affects the...www.preprints.org
Anecdotally, since switching from smoking to vaping, I have become much less susceptible to chest infections and respiratory problems of all kinds associated with colds.