Marijuana is much safer than alcohol or tobacco, according to a new study Marijuana is roughly 114 times less deadly than alcohol, according to recent findings published in the journal Scientific Reports. Of the seven drugs included in the study, alcohol was the deadliest at an individual level, followed by heroin, cocaine, tobacco, ecstasy, methamphetamines, and marijuana. Previous studies consistently ranked marijuana as the safest recreational drug, but it was not known that the discrepancy was this large. The researchers determined the mortality risk by comparing a lethal dose of each substance with the amount typically used. Not only was...