52 & still doing 100 push-ups per day, 4-Krav Maga classes & 2-BJJ classes per week. I take it easy on the 30 & 40 yr olds, but the 20 somethings I LOVE it when they get paired up with me during sparring. After class I just say "NEVER JUDGE A BOOK BY IT'S COVER", I hope this doesn't make me...