It's a simple truth: a living organism is either growing or decaying. There is no point in between.
Eating "dead" food that's been processed to the point of being more of a pseudo-food, such as one would find in fast-food joints and in the aisles of most grocery stores, does not provide fuel for growth. Fresh fruits and vegetables, whole meats and grains, and water: these are the substance from which a body can grow stronger.
When I was sitting in front of the TV all day eating chips or take out while drinking soda, my body was dying. No more. I am providing my body with the tools it needs to grow - fresh foods, exercise, and water.
Here's to being fabulously fit (and totally alive!) at 40!