With the Bowflex Dumbbells the Simple Chest and Triceps Exercise is great for tightening up your chest muscles. Especially if you’re suffering from every woman’s worst nightmare saggy boob syndrome. This is one of the exercises you should be doing! That statement doesn’t only apply to women either, they’re “saggy-breasted” men out there that should be included too. Begin by lying on your back with a dumbbell held in two hands out vertical and push our chest out by squeezing your shoulder blades together. Next, lower the weights down on your chest and push the Bowflex Dumbbells back up to the starting position.