These lists always miss the point. For example, the list is most likely right about sleep. However, if you're not sleeping enough you'll most likely say "It's ok man, it's under control". Only when experiencing personally the damages of sleep deprivation you'll say "I should sleep more". Not because you read it on a list or your friend tells you. As for six packs, yes, it's important, because it will insulate you fro…
crunches have nothing to do with a six pack. follow the link he provided.
I'm not a big fan of intermittent fasting or any 'program' for that matter.
What I'd like to say, from personal experience, is that nothing beats a balanced diet and regular exercise. No program, no "method". Just an old fashioned healthy life.
And sorry, but if you want a six packs, at some point, you'll have to sweat for it.