What are the two benefits of engaging in sports?

How does physical activity benefit your mental health? What is causing my knee to hert and make a rusty sound everytime a bent or walk? What kind of competition is body fitness? What can exercise help your muscles? How many calories are burned climbing stairs? Do machines like boflex provide similar benefits as pilates machines since they both use resistence without actual free weights? Isn't there a word - GYM-MING? How many pull ups should you be able to do? What area does physical fitness such as aerobics benefit most? What size are 45 inch pants? What muscles are used when running cross country? What is the right dose of exercise to ensure a longer life? How do you order products from Gold's Gym? How can I prevent or treat scratches on my shoulders after a workout? How can I optimize my protein intake to support glute growth effectively? Where online can one find information on bodybuilding? What are the most effective techniques for performing around the world dumbbell lateral raises to target the shoulders from all angles? How much weight can you carry on your back? What is the bench press record for a 130 pound youth? Bench press routine?