Legs hurt to train because of their size. Being much larger and stronger, our legs can burn huge amounts of energy in a short time. In an emergency, we'll burn energy faster than oxygen can be delivered, which is called “anaerobic” (without oxygen) metabolism. #weightloss #weightlossexercises #weightlosssmoothies #weightlossworkouts #weightlossbeforeandafter #loseweight #loseweightfast #howtoloseweightfast #legdayworkout #legdayworkoutformen #legdayworkoutwomen #bestlegdayworkout #legdayworkouts