The adverse health effects from cigarette smoking account for more than 440,000 deaths, or nearly one of every five deaths, each year in the United States.2,3,4More deaths are caused each year by tobacco use than by human immunodeficiency virus (HIV), illegal drug use, alcohol use, motor vehicle injuries, suicides, and murders combined.3,5If nobody smoked, one of every three cancer deaths in the United States would not happen.2Smoking causes an estimated 90% of all lung cancer deaths in men1,2 and 80% of all lung cancer deaths in women.1An estimated 90% of all deaths from chronic obstructive lung disease are caused by smoking.1,2
So I wonder why it took 40yrs for the damming scientific evidence to emerge of this highly commercialised, heavily promoted and culturally embedded drug?
While during that same time the massive investment in scientific research has been made to attempt to prove cannabis is very dangerous.
There is no doubt whatsoever – that tobacco is much more dangerous than cannabis.
See on www.cdc.gov