@Martin Everson reading you have made me hypervigilant. I have been to doctor. He can't help me either so I am asking you how to relax everson style?
True. Doesn't apply to btc though.
It depends what is your starting point.
As above.
As above. More muscles = better health, up to a certain point. With a healthy sub 20% bf.
With a small one, your partner will not be happy, and this will make you unhappy.
Not directly, but will improve your looks.