TURNING 37 is a milestone that goes pretty much unacknowledged, but its a big one. Its the median age for men in America, and it happens to be the very same age Chris Hemsworth will turn next year. Its a time for assessment-a convenient weigh station-coinciding with the point at which the optimism and vigor of your 20s starts evolving into confidence and grit. At 37, youve encountered successes and failures, and those experiences have begun shaping your values and your future. Hemsworth, in t...