I dunno. When I ate junk food and gained weight, I started getting out of breath easily from not that much exertion. Signals of poor diet and exercise are fairl

I dunno. When I ate junk food and gained weight, I started getting out of breath easily from not that much exertion. Signals of poor diet and exercise are fairly self-evident - you don't need to read a bunch of anxiety inducing books about the right diet and best exercises to do - just a little basic self assessment. It's a heuristic; it shouldn't be taken to extremes.