Let’s think about what our everyday lives involve: At the most basic level we eat, we move, and we sleep. All these actions are needed for basic survival. Without appropriate foods supplying energy and essential nutrients we would waste away, become ill, and die. Without exercise, our immobilized muscles would wither away making us weak and unable to perform basic tasks needed for normal living. With insufficient sleep, we would feel tired, lethargic, and irritable, and life would become a chore. So, we must satisfy the body’s needs for nutrition, physical activity, and sleep, but why stop there. Let’s rephrase the original question. We should really be asking “what do we need to do to achieve and maintain optimal health throughout the lifespan?” because this is what can give us the best quality of life. Optimal health should be considered as a state of complete physical, mental and social well-being and not merely the absence of illness, disease or infirmity. The key word here is “optimal”; it is not just what we need to survive, but what we can do to attain the best possible health outcomes and enable us to improve our quality of life, not only in the present but also in the future. You will realise and appreciate the importance of this as you get older, just as I have! By being healthier, fitter, stronger, and more robust, we can lead more fulfilling and enjoyable lives, live independently for longer, and actually live longer.