You know why celebrities can lose all that weight and look so toned and fabulous after just months of being at the gym? Two words: personal trainers. Not all of us can have the luxury of an expert who can customize our workout and then bully us into following it every day. But these tips, culled from exercise and fitness gurus, can help you be your own personal trainer. … [Read more...] about 3 tips from personal trainers on toning muscles