The squat is a fantastic compound, full body exercise that primarily train the thighs, hips and glutes. Through regular squatting, you can increase your flexibility range, they can assist with body alignment and general posture, they help the body produce testosterone which the body uses to help build muscle not just in the legs but everywhere, squatting stimulates your organs and glands which can help with increasing blood circulation throughout the body. Squats are a super exercise, try and incorporate them when you can.