I also often go to exercise. Generally speaking, everyone's physique is different, and some things can't be seen from the data alone. What follows is your living habits, which are different from your buddy's. Maybe this is one of the reasons why your effect is different now. Another is that you may eat and drink the same muscle tissue, but he steals protein powder, fitness powder and so on. Everyone who works out knows that there is a big difference between eating and not eating.