bA Workout to Reverse Agingb pProfessional trainers know that high-intensity interval training is a super-effective way to burn fat and get ripped. However, research shows that this popular exercise approach also improves heart and cellular health, prevents disease and enhances athletic performance for older adults--regardless of age. The scientifically proven fitness routines in Staying Young with Interval Training take much less time than conventional workouts, so you can quickly gain b p- Greater flexibility for an active lifestylebr- Muscle and core strength to stay in the gamebr- Increased energy for the things you lovebr- Optimal health to live longer and fitterbr- A leaner physique with fat-burning staminab