I think the author of previous comment meant that changes need to persistent, not transient. One can't just stop taking heroin for few months to improve their h

I think the author of previous comment meant that changes need to persistent, not transient. One can't just stop taking heroin for few months to improve their health and then go back using it again. Same with food - if you want your weight to stick, you need to adhere to your diet permanently and don't start eating junk food once you hit your target weight.