Yeah. Fucking Bob Marley. Such a slacker.
And Snoop Dogg, Jennifer Aniston, Louis Armstrong, James Brown, Paul McCartney, Norman Mailer, Johnny Cash, Jack Nicholson, Brad Pitt, Carl Sagan, Stephen King, Neil Young, George Washington, Oliver Stone, Friedrich Nietzsche and Richard Feynman and John Lennon…bunch of useless couch potatoes there.
There’s a difference bewteen a casual toker and a heavy user. Just like there’s a difference bewteen a casual drinker and an alcholic (who is currently not sober). Most of the celebs you list were casual users.
Look, there’s nothing wrong with being an occassional toker as I said; pot is no worse than booze. But booze can ruin your life too.
Speaking personally, anecdotally, and hypothetically, if we did that sort of thing around here we’d recommend the one sold by VaporBrothers.
Friedrich Nietzsche? Really?
Really, how could he not? He went to a private boy’s school where he wrote (bad) poetry and studied music, and then theology and philology (classic Latin and Greek). He later stopped teaching to become an “independent philosopher” and writer. Does this not sound a stoner to you? 
But yes, he did apparently write, " “If a man wishes to rid himself of a feeling of unbearable oppression, he may have to take to Hashish,” in his autobiography, Ecce Homo, and is understood to have been a partaker himself for ahem “health reasons”.
Take this all with a grain of salt.
From my understanding, compared to smoking cigarettes, smoking weed is no worse for your health. If, that is, you’re looking at cancer rates, chronic obstructive pulmonary disease, emphysema, or other lung problems.
However, there’s something to be said for the effect smoking weed has on your brain. SPECT scans (single photon emission computed tomography) show that chronic users have “overall decreased perfusion when compared to a non-using control group”* as well as “decreased temporal lobe activity.”
Comparing a control group of patients with ADD to a group of patients with ADD who also used marijuana, marijuana users were found to have less prefrontal cortex activity than the control (ADD patients already have a decrease in prefrontal cortex activity compared to non-ADD people) and decreased temporal lobe activity.
Perfusion is the delivery of oxygen- and resource-rich arterial blood to a particular type of tissue. Brains need a lot of it. A decrease in perfusion to the brain could easily interfere with global cognition.
As the prefrontal cortex governs what we consider to be “civilized behavior” by providing appropriate inhibitions, the ability to predict consequences, and the drive to anticipate and plan for the future, decreased prefrontal cortex activity is not good.
The temporal lobes appear to play roles in integrating memory and emotion with our perception of self/reality as well as housing the centers for language. Again, decreased activity is a bad thing.
This isn’t to say that every person who lights up a spliff is killing off chunks of their brain. Clearly, some people’s brains are more resilient to and tolerant of insults. Just as clearly, other people’s brains are less resilient. The trouble is, it’s really hard to tell which one your brain is until the damage is done. Me, my brain’s got enough problems as it is. I’ll skip the tobacco and the marijuana, thank you.
not sure how, but that list doesn’t seem to have Joe Rogan - one of my personal favorite dudes all-around, and fairly outspoken as far as mj support.