In this video: I discovered that my Real Estate Agent client's Neck Muscles Pain, which continually gets irritated when dealing with frustrating home buyers, actually had their origin from a Neck Muscle Sports Injury sprain playing Tennis in college many years ago. This revelation, which occurs at the end of this video, speaks to the phenomenon of a 'weakest link' in the body which keeps getting injured over and over again, when another person, experiencing the same exact accident, will likely injure a different part of their body (i.e.; their 'weakest link').