"I must warn you that if you only run 30-40 the hardest weeks and 20-30 miles in the other weeks, you will not have prepared your body for the hard work of the marathon. You may have to drop out of the race or you will have a very bad day. You will also risk injuring yourself in the race and you cannot afford to be injured."
“Many athletes including weekend warriors, spend much of their time getting fit but do not pursue health with the same vigor. Many others can actually become less healthy as a result of pushing and sacrificing their bodies beyond some imaginary limit. In doing so they induce significant stress from training, or over training, poor diet or other factors rendering them less healthy. The result is an injured knee, recurrent respiratory infection, chronic fatigue and other health problems considered part of the game. But it’s not part of healthy training. These problems are indicative of an imbalance between fitness and health. One can have both good health and achieve high levels of athletic performance.”
– Dr. Phil Maffetone