Stretching that is characterized by a "bouncing" action is called
Ballistic stretching.
It helps efficiently to increase your range of motion but is known to create an injury. That's why they tell you NOT to do this specific exercise, unless you have a professional trainer with you that can help you.
Anyways, Good Luck! :)
Washing your hands is a healthy decision
Overdominance occurs when a heterozygote has a more phenotype than that of either of its parents.
No not true the higher mg or milligrams you take wil take the pain away longer
It will help you build muscle for sure but you will need to increase the reps if you want to improve further, it helps to build your biceps, pectoralis, and your deltoids