Millions of people feel lost when it comes to their weight, body composition, or training. What do you usually do when you’re lost and want to get to point X? You could try to get there by guessing or asking directions, but it would require a longer, more tedious, or more perilous route (if you ever even end up at your desired endpoint at all). The next best option would be to use a map, but this is only helpful if you know where you are on the map.