Personally they are one of the exercises that I do daily and why not my favorite for the upper body
like everything in life at the beginning it costs a little more effort. Then with practice it will be easier. I now even have to use ballast, in order to be able to properly pull, over time your body will become stronger. If you surrender at the beginning you can try again.
Pull-ups are an effective exercise, but many people have difficulty doing them, even if they have a good general physical condition. For example, very muscular individuals may have difficulty lifting their own body weight. The best way to increase the number of pull-ups you can do is to practice. If you can not carry out any, start with simpler variations and perform exercises that strengthen the necessary muscle groups.
Pull-ups require many different muscle groups, so it is not surprising that they are so difficult. The main muscle group is the broad dorsal, or just dorsal. Secondary muscle groups include trapezius, rhomboid, biceps, anterior serratus, transverse abdomen, and oblique, according to the American Council on Exercise. Developing such muscle groups makes pull-ups easier, although the process takes time.