I do three hundred push ups/ burpees every other day in different variations... I started in prison six years ago and haven't stopped since... I'm in the best shape of my life!!! I probably never would have gone so hard if I never went there... It took my mind off of things that I couldn't control... now it's just a normal thing to do... I'm not saying that im huge,but other people can tell that I've been working out... I'm almost fifty and I'll run circles around these young cats around my way!!! And they all want to work out with me now!!!