Quote Originally Posted by Times Roman View Post
inert means that it doesn't react/interact with anythying, and it doesn't change chemically.

Helium is the lightest of the inert elements. doesn't interact with any other atom/molecule/chemical. A million years from now, that helium atom will remain unchanged. Forget about the half life principle for now.......
My concern was pain and thought it might be the 1 in pin ? I have 5/8 pins ? Another member said I probably hit a nerve but I injected 2 x's in that Quad and lasting pain both times with 1 in and I read in a previous thread to use a 1 in in Quad due to fat but my Quads are not fat not huge ? wondering if the 1 in is a bit to long ?