Benefits Of Push Ups, get a six pack from push-ups,

You will likely notice gains in upper body strength if you do pushups regularly. For the best results, continue to add variety to the types of pushups you do. You can also follow a “pushup challenge“ where you gradually increase the number of pushups each week. You can work up to doing 100 reps in two months.
If doing a 100 Push Ups is hard for you, then your muscles will need some recovery afterward. For maximum strength gains, it's best to let a muscle group recover for at least 48 hours. If you keep tearing those muscle fibers you might only overtrain them, get bored and maybe even risk an injury.
Therefore, a standard push-up can increase strength in these muscles. When you combine push-ups and additional upper-body exercises, you can increase the size of your arms and increase your overall pressing strength. Harvard Health Publishing considers push-ups to be the "perfect exercise.