The 40 % Rule: Everything starts in the mind, if you lift weights at the gym, you know that after a certain number of reps, your body feels as if it can’t continue. But the 40% rule states that when the mind starts telling the body it’s tired, we have only reached 40% of what we are capable of. At this point, it’s up to you to choose to believe that you’ve still got another 60% left in you. To push past the 40% threshold, you must accept the mental and physical pain you are enduring at that moment.
