Sometimes people are so caught up in the minute details of their workouts or diets. They’re concerned about how to work some tiny muscles in their forearm. Or they’d like to try some wacky ab exercise that was seen in a magazine. Or, this is a classic, searching for the best fat burning supplement out on the market. They worry about the last 10% of their workout and nutrition program , rather than the 90% that’s going to make the largest difference. You want to worry about this stuff, fine. But your first concern should be to have the basic principles of exercise and diet and place. Worry about the major details. Are you getting enough hours of exercise in per week? Are you using the basic, compound lifts? Are you including enough protein in your diet? Probably not. Focus on the 90% and forget about the 10.