How Do I Maximize the Stress Put on the Hand Tendons?

This week on the Dan John podcast, we get a question from Hayden. How do you suppose one could maximize the stress put on the hand tendons? One could maybe get the tendon strength similar to that of a peasant farmer,. I've been doing farm or suit case carries three or four times per week. Should i work up to the volume at lower intensity, like i would do with distance running, traiding plan, or does higher intensity and variations work better? Well, i don't there's a very obvious reason. Go find some ace where they still have peasant farmers.