Get your blood pumpin' with the revolutionary PHA - Peripheral Heart Action - workout from the UK's No. 1 fitness author. Whether you want to lose fat, build up your strength endurance or bulk up, the flexible home and gym workouts will help you achieve your fitness goal in half the time. Raising your body's metabolism, the PHA workout will give you a fabulously toned, taut body in next to no time. Matt Roberts is] an inspiration for people who are serious about fitness and well being' - OK.