They do, I've heard many, helps lower blood pressure, helps body regulate blood sugar, cholesterol, helps with anxiety, even helps broken bones heal faster, as well as many others, it is not even stoners who say it, numerous researches, and it is most likely true to some extent, but like with any meds, overdoing it kills the benefit. kids today smoke all day long, fry their brains, but otoh it is good for those kids who are not smoking, in 20 years or so, they will have much more employment opportunities, and will be a lot more desirable candidates for companies to hire,I predict there will be so few young kids who did not fry their brain, they will be in high demand.