It makes the lines and striations in the muscles more visible. So basically it just makes the muscle definition easier to see. Hope that helps!
Answer:
My biggest struggle surviving in highschool was dealing with lots of homework from my teachers because I did not understand some parts of the material my teachers were teaching, I will help myself survive the pressure by making sure I complete all my homework daily and not skip any assignments.
I believe the answer is: Eat a well-balanced diet to increase energy and immunity
Even though physical activities improve both our energy and immunity in the long run, they are not as significant as maintaining well balanced diet in your life.
You need to make sure that you get your nutrients from various source of non-processed food in order to fulfill both your macronutrients and micronutrients.