From committing to every day workouts, the gains came fast and i was able to work my way up to 100 pushups a day where i stayed at for about 5 months. They're easy to do, and they work your whole body After doing one set of pushups to failure every day for an entire year, youtuber troy adashun recorded the results of the fitness challenge.
I Did 300 Pushups EVERY Day for 30 Days, And This Happened..... - YouTube
Doing one exercise for a month allows you to focus on a particular muscle group, which can help fix strength and muscle imbalances