I was perplexed by this study as well and in a dilemma. I had to choose between a couple of new studies showing smoking might reduce my risk of Covid vs decades

I was perplexed by this study as well and in a dilemma. I had to choose between a couple of new studies showing smoking might reduce my risk of Covid vs decades of studies showing smoking causes cancer. So I aimed to quit smoking and get healthy to reduce my risk of cancer and Covid.