What do x-rays have to do with nuclear chemistry?

and how is nuclear chemistry used in the medical field?

1. X-rays go pretty far when it come to nuclear chemistry because a professional would use that information to find out different way to cure certain bone diseases depending on what the disease is.
2. Nuclear chemistry in the medical field can be used to create fast healing and more efficient medicine with little to no side effects.

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

Do it when your comfortable. they will understand . they will love you no matter what