In what ways are health problems in the workplace related to health problems in the general community?

-workers, usually the healthiest people in the community, are exposed in the course of their jobs to specific hazardous materials at high concentrations.
-in the instance of industrial disaster 
-workers themselves as a community

I'm not ment for this question

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.