Discussion Topic Knowing how important the brain is to the functioning of all of our body functions, what do you think happens if one of these lobes is injured? What body functions could be affected, depending on which lobe of the brain is affected? Many sports involve frequent head injuries. Do you know of any such cases? Discuss such an event and how it could have been avoided. How should people and athletes protect themselves from brain injury?

Hair follicles, blood, etc.

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.