Hello and welcome to Healthcare Magic. Thanks for your query.
Smoking, in any form, can result in a wide range of adverse effects like lung problems, increased risk for cancers, increased risk for heart attack
or stroke, etc. etc. Marijuana is a psychoactive substance, which by itself produces significant psychological effects by acting on the brain. Hence, marijuana abuse
by itself has been associated with a variety of psychiatric disorders like anxiety
, panic attacks, agitation, psychosis
, mood instability
So, I would suggest that you advise your friend about these multiple problems and motivate him to quit. If needed, he should not hesitate to seek professional help for giving up these habits.
Wish you all the best.
Dr. Jonas Sundarakumar