Which of the following injuries is the most severe?
1-severed finger
2-broken leg
3-scraped torso
4-breathlessness

The answer is Breatlessness

In worst case scenario, severed finger, broken leg, and scraped Torso can only lead to immobility for some period amount of time

Meanwhile, in worst case scenario, Breathlessness can lead to Brain damage or even death.

They might be white heads, basically pimples but you should ask your parents to check them out before it’s something bad.

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.