Working your legs, with free weights, will help you burn belly fat and make your core stronger than most ab exercises do.
Norwegian scientists in a study found that people who did lower body exercises like the squat or lunge gained more upper body strength than those who didn’t.
Another reason, our muscles weaken as we age, which means performing daily activities will be more difficult and more tiring. Having strong legs will help fight fatigue and lower your risk of falling. We are more likely to stumble from being tired, strong legs helps sharpen your reflexes and helps you keep your balance.