7
it is impossible to live without a
heart beat for longer than minutes.

Brain cells begin to die after about 4-6 minutes of no blood flow (the heart beating makes the blood flow) after about 10 minutes without blood flow the cells are dead.

The person about is correct because it’s true the brain cells beings to die after 4-6 minutes

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.