Video by xibo_wu

10 out of 10 habits to build unbreakable endurance but they get progressively more niche. Hold a pace where you can speak in full sentences while breathing only through your nose. Green Beret's strength and conditioning coaches use this exact test. Subtract your age from 180 and never let your heart rate cross that number. Special Forces Selection uses this exact ceiling,

anything past that stops building real endurance. Increase your weekly mileage by no more than 10% one week at a time. This exact tap comes from SF selection injury data. Go any faster and your fucking body will break down. Zerco squat with a sandbag or the heaviest awkward object you can find. Green beret, conditioning coaches,

strongman lineages and old school farmers all built this exact strength. And build endurance so unbreakable that within weeks, nothing in your life can keep up.