The 40-Pushup Challenge: Master Them and Add Years to Your Life - Men's Journal

An Enduring Measure of Fitness: The Simple Push-Up - The New York Times

The best 22-minute strength exercises for busy people

Men who can do 40 push-ups far less likely to develop heart disease - Study Finds

Over 40 and male? Start doing push-ups

Men's Health: Muscle After 40: The Ultimate Step-by-Step Training Guide to Safely Build Your Best Body Ever in Your 40s and Beyond - Lose Unwanted Fat and Build Muscles! : Men's

40 push-ups linked to better heart health in men

59 Year Old Joe does a Push Up Challenge That Will Change Your Life

Men Over 40 Can Use Close-Grip Pushups to Train Triceps Muscles

How the simple 40 push-up test could save your life - if you're a man - Mirror Online

The Perfect Push Up Yatinder Singh , push up

Harvard: Men who can do 40 pushups have a 'significantly' lower risk of heart disease - Big Think

How will my life change if I do 200 push-ups every day? - Quora

Men's Health Your Body is Your Barbell: No Gym. Just Gravity. Build a Leaner, Stronger, More Muscular You in 28 Days!: Gaddour, Bj, Editors of Men's Health Magazi: 9781623363833: : Books

How many pushups should a 13-year-old be able to do before his arms give up on him? - Quora

Push-Up Challenge: 4 Weeks To 50 Push-Ups