Tamio "Tommy" Kono, the legendary Olympic weightlifting champion and Mr. Universe, has an interesting way of looking at training. Imagine you have a test tube filled with your workout ability, he says. Each time you train, you should spill out just a little bit of the test tube. You refill your tube with recovery tools and rest days. The problem, Kono says, is that most people's training involves emptying the test tube and never giving it enough time to refill. Rather, they keep pouring out more and more until injury, illness, or apathy arrive. Sadly, all three often happen at the same time. In order to make continuous progress and stay healthy, you need to think of your workouts as daily "performances" in the weight room instead of going all out and depleting your test tube. Renowned Russian strength coach Pavel Tsatsouline uses this exact philosophy with his 40-day workout program. It requires daily reasonable workouts using light to medium-heavy loads.