Secrets of a Long & Happy Life (Applied Psychology, #15)

The essence of longevity is harmony. It is bringing your inner world into harmony with your outer world, the microcosm with the macrocosm. Your inner world is a reflection of your outer world and the two should be as closely aligned as possible. The more conflict there is, the more stress and strain there is, and the shorter life tends to be.

At the physical level, longevity is achieved by keeping your body flexible and in good working order. At the mental level it is keeping your mind clear...