Possibly because exercise is beneficial to health.
No! Because Push-up is exercise..
AN exercise pushing your upper body up from a prone position.
push up
Push ups
The equivalent exercise to a push-up that can be performed using a bench press is the bench press itself.
push up pump
Any exercise that involves breathing is classed as an aerobic metabolism.
Push-ups
running or push ups
You need a full exercise regimen not just one exercise. Push ups alone will not necessarily give you visible abdominal muscles.
Flexibility ??
Exercise ,maintain ,wield