Type O blood: You tend to be strong and athletic—with powerful arms and legs—and, because you’re no longer chasing your meals, crave high-intensity workouts like interval training, running, and plyometrics. You use exercise as an emotional outlet, and need it more than other blood types to fight stress and anxiety and boost your mood.
Type A blood: Intense exercise increases your levels of the stress hormone cortisol and leads to muscle fatigue and stiffness. You do best by opting for calming activities that help you focus and protect your joints, like Pilates, yoga, Tai Chi and isometric exercises.
Type B blood: You’ll enjoy group cardio workouts that are slightly lower impact, like tennis or cycling, as well as resistance training.
Type AB blood: You tend to get muscle and joint stiffness from high-power cardio sessions, so you’ll be more apt to stick with gentle exercise, like walking, hiking, golf or dance. However, you also tend to internalize anger, so yoga and Tai Chi can be helpful for keeping your mood level and your muscles and joints limber.