Are cigarettes, and alcohol the least harmful substance ?
caffeine is less harmful. Sugar is less harmful. A large number of prescription drugs are less harmful. Marijuana is probably less harmful (definitely less harmful than alcohol). Look, any drug you take too much of too often is going to kill you. You might live to be 70 despite this. But you MIGHT have lived to be 100 if you had laid off the sauce when you were younger! You might NOT die of cardiac arrest or lung cancer or emphysema when you are 30 but you might live to be 90 if you avoid cigarettes (which are coffin nails) and cancer is such an awful way to die. (one of my friends from grade school had a heart attack and died outside of his home at the age of 35– he’d been smoking cigarettes since high school, and he was having undiagnosed health problems. Then one day he went outside to smoke a cigarette in Wisconsin sub-zero temps and the nicotine caused constriction in a damaged blood vessel and he had a heart attack and died– his wife found him an hour later… It was horrible.)