do cigarettes prevent covid Here's how that rumor that smokers can't get COVID-19 got started The controversial effect of smoking

Reduction in mitochondrial function characterized by lower mitochondrial membrane potential, changes in ETC complex activities, lowered ATP synthesis, inefficient Ca 2+ buffering, increased ROS production, altered mitochondrial dynamics or release of pro-apoptotic factors is found during aging and in many chronic diseases (Nicolson 2014

And the tobacco industry itself (internally) documented links between the two in the early 1950s

When youre lighting up with matches, which usually requires two hands, hold the cigar gently in your mouth

Ayahuasca Reader: Encounters with the Amazons Sacred Vine

2023: Fontana (WI): Global Initiative for Asthma

This means that your heart will not have to work as hard to pump blood around your body to give it the oxygen it needs to function properly