The deadlift is one of the more important lifts or maybe the most important lift for strength. It is a compound lift, it means that it involves a muscle group and not just one muscle. The deadlift works a variety of muscles: the quadriceps, hamstring, glutes, adductors, lower back (erector spine), forearms, trapezes, and biceps. This is the complete exercise you can do and it builds serious strength.
Testosterone is a primary anabolic hormone that is much more predominant in men over women. This hormone is also responsible for muscle growth and repairs, which means that it is very important for strength. The heavy deadlift increases the production of testosterone, deadlifting more than 75% of your 1RM will definitely raise your testosterone levels. So if you want to get more testosterone in your body, you know what lift to pick up.
Growth hormone is produced by the pituitary gland 3 hours after you sleep, and is also responsible for muscle growth, bone strength, joint and tissue healing, and fat loss. Deadlifting heavily is also proven to stimulate your body to increase the production of growth hormone.