You think you can't. We know you can. If you would like to be considered for a spot in the next 4:13 Strong class, you must participate in our Mental Toughness Week. During this week we will be evaluating each participant to find the men who are serious about investing the effort required to make real life changes. What to expect: Monday - Thursday you will be working out from 8am to 11am, get a one hour break for lunch and…