These excerpts come from Dr. N.W.Walker himself, taken from his advertisement promoting his book, Become Younger:

"Do you want to learn how to become younger, more alive, awake, alert, and full of enthusiasm ?
Do you want to learn how to sidestep the hazards of old age with its attendant sickness and disease, loss of memory and eyesight, lack of interest in the progress of the day, and the suffering that goes with them?

"From this book, Become Younger, you will learn the answers to all these questions and many more too. You will learn that old age is not the number of years you have lived but the condition of the cells and tissues in your body. You will learn how to take care of your body so that you may remain young and full of energy and vitality at any age, free from ailments, sickness, and fatigue."