On the inflammatory thing. Stevesmi has stated that foods are etc etc. However, so is exercise. Indeed we deliberately stress our muscles, which causes said issue, which then under ideal conditions respond to the stress by growing etc etc.
The real issue, touched upon above is avoiding too much aka over training. In the past, and I've talked about this before, I have deliberately pushed it at the end of a training cycle so as to allow for what is called 'super compensation'. By making myself dog tired and then having 4 clear days before a competition. By day 4 I am ready to rock and fkin roll.
What no one wants is to feel ill, tired, run down etc. This can show up in spots, cold sores, tiredness and so on. While PEDs help too much, as we all know, is just as toxic (Tren I'm looking at you). Why take so much that you make yourself unwell AND train like a dog to boot.
Tricks such as monitoring your resting heart rate and going back over logs to see if you are in fact progressing and not getting injured, sliding back etc are all important.