Your elbows should be glued to your ribcage as you lift/lower the weight. If you try to bring the bar to your chin, for example your shoulders will begin to move forward (shoulder flexion) and your exercise becomes a bicep-shoulder curl
It is important because it lowers the risk of different cancers and lowers the risk of diabetes
-constant anxiety
-nail biting
-chewing inside cheeks
etc
Going to the gym, running , after school activity and more.
There all interrelated with one another
