This dude that has a gf but he has feelings for me today said he will get chewed out by his gf for talking to me and so i said that i will stop talking to him and he said no what does that mean

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.

Keeps you from getting lung cancer from smoking