The AIS Clinic is a Boston-area clinic that specializes in the practice of Active Isolated Stretching, which will help you bolster your flexibility. This form of stretching reprograms your brain and your body to remember new ranges of motion so that you see fast improvements in flexibility and remove any preconceived notions about your flexibility. This allows for potentially remarkable healing and recovery from certain conditions and illnesses that do not typically repond well to conventional treatment Weekend hours available by appointment only. Flexible Spending is accepted.