OK. This one will take some thought. "Never just quit something....always substitute." The rationale is that BAD habits fill needs, so it is necessary to replace them with GOOD habits that address that need. Their ("O" Magazine's) for instance was you shouldn't substitute push-ups for pancakes unless you REALLY love push-ups.
I think I get it. Do you? No need to worry about ME substituting push-ups for pancakes, by the way.