I really emphasize with what you&#x27;re saying here.<p>As a kid, I remembering hearing - &quot;drink water&quot; all the time.<p>It never helped.  I never once felt better drinking water than not.  But no-one cared.  &quot;I&#x27;m already drinking water.&quot;  &quot;It doesn&#x27;t help.&quot;   It was the panacea to a sea of unrelated problems and no-one was interested in actually checking up on whether it worked.<p>Now, I&#x27;m at a different place in my life, and the water is immensely helpful.<p>Exercise really helps - on average, statistically, it&#x27;s one of the most effective interventions, and if you&#x27;re any sort of health care provider you immediately notice the difference in a whole group of patients after they exercise vs a day they don&#x27;t.  And a lot of times individuals cannot notice the difference from inside, even if their behavior is a lot more upbeat.<p>But for someone people who need something entirely different, it might not help for that particular issue.