Every year you replace 98% of the atoms in your body. So if you eat really well for the next year, you could have a very fine working machine for a body to do things you couldn't do before such as being healed from a chronic disease you suffer, have a much stronger immune system, and perform at your favorite sport or job by improving overall general awareness. So stay away from azodicarbonamide and aspartame even though they seem relatively harmless.