Over the course of my military career, I’ve been around A LOT of health/fitness-conscious people. Many of them have become true believers in things like cross-fit, yoga, and other forms of exercise and it becomes a way of life for them. Similarly, I’ve seen all the passing diet and nutrition trends that seem to come on strong, make a big splash, then fade off into the twilight as quickly as they arrived. My observation is that younger people generally want to look good by putting in the work (sweat equity), while older people generally want to look good by changing...