When Wayne Hackett showed us how we can scan our Hi 19s and Lo 8s to help our teeth, I must admit I was somewhat skeptical. For someone with weak teeth, it felt way too easy and simple. Nevertheless, the information stuck in my head, and I was talking about it just the other night with a fellow Jin Shin Jyutsu student. When I started demonstrating how to scan the Hi 19s, I immediately hit on a sore spot on my arm, somewhere half-way to the back. I quietly kept my hand there for a bit while we continued talking.