If you aren't sold yet on why the TGU will keep you feeling young into your 30's, 40's, 50's, 60's and beyond - take a look at this study by Claudio Gil Araujo from Brazil. The study said being able to stand up from a seated position on the ground was remarkably predictive of physical strength, flexibility, coordination at a range of ages.
3) Carries - You have to give an exercise some major thought when Dan John categorizes it as one of the fundamental human movements: push, pull, hinge, squat, loaded carries and the sixth movement.
When loaded properly farmers carries are an excellent exercise for core strengthening. It is an easy to learn exercise that challenges your endurance, strength, stability and grip strength. The ability to carry heavy loads gets our core to create super-stiffness. Dr. Stuart McGill describes this super-stiffness as - the sum of the forces of all the muscles contracting is greater then what any individual muscle can provide. This teaches you to build true strength that will aide you for any endeavor you wish to attempt.
4) KB Swing - This exercise develops power in the hinge position. Why is power important? As you age, power decreases - so swinging consistently can help you maintain a power packed punch as you age - not to mention, allow you to improve your overall performance, strength, and endurance.