N = 23. And "benefits of exercise" = specifically lowering of systolic blood pressure.<p>Interesting and surprising result that I expected to be complete BS, but reading the abstract made me do a double take. I'm still doubtful though, especially since they found such a large difference (60%). I wouldn't say it warrants any kind of reaction beyond "huh, cool" until it's replicated ten times over with much larger sample sizes, however.<p>Then again I don't personally use mouthwash and always assumed it was a gimmick (unless it's for a specific treatment).
> Twenty-three healthy adults were asked to run on a treadmill for a total of 30 minutes on two separate occasions, after which they were monitored for two hours.<p>a tiny study