Head position while squatting.... This is SO IMPORTANT! Whether you are squatting with a $hit ton of weight or doing body weight squats, proper attention to technique is key.
Head positioning plays a major role in keeping your spine aligned properly and aids in helping your shoulders stay back during a squat (deadlift, OHS etc.). If your spinal alignment is off, this makes the squat a very dangerous exercise, especially when you are using a $hit ton of weight:)
SEEK. BELIEVE. ACHIEVE.