When it comes to bodyweight abs exercises, crunches aren't always the way to go. In fact, research has shown the classic crunch isn't even that effective since it doesn't activate all of your core muscles.
This Fitness Challenge Will Make You Feel Like A Badass By LUZ PLAZA Push-ups are quite possibly one of the best upper-body exercises. They build muscle, strength and endurance. Plus, they have the added bonus of not requiring an