This is what the shanks are like: you are a healthy, fit, athletic fifty-year-old man who still plays many sports competitively.  One morning you wake up and go down to the kitchen for breakfast, and on your way back up to the bathroom you realize that you just cannot remember how to correctly climb the stairs.  There’s nothing wrong with you—no cognitive meltdown, no physical infirmity.  Your legs work fine, you feel good.  You know you... Full Story