No one wants to get old and ironically no one wants to die young as well. Age of a person has nothing to do with the number of years he has lived. It has a lot to do with how his thought patterns are taking shape. As long as you are capable of dreaming, you are young. But then, some people never learn to dream. The fact is they never live. They just pass through this planet for a very short duration; so short that they are not even noticed. Even if such people live for hundred years, they would not matter. And on the other hand, we have people like Anne Frank, Keats, Shelley who died young but left some indelible prints on the surface of time. So, age is irrelevant and an unnecessary topic of discussion.
What we do when we live is of utmost importance. And our actions have a lot to do with our dreams. A child is a born dreamer & he wants to get whatever he dreams. Initially, he gets everything he dreams & demands but, by & by, we convince him that in life you don't get whatever you dream & this is the moment when a child is killed & an adult is born. This new-born adult starts aging fast as many of his dreams soon convert into regrets. He grows old when all his dreams are no more than a bundle of regrets. So, we may have an old man of 26 or a young lad of 70 depending upon his state of mind.
Life will be a difficult assignment without dreams. We will only see frustration, anger & loss around us. It is in our dreams that we find real life. Many a time, it is while living that we go through the motions & wake up to the reality in our dreams.
Even if we consider that all our dreams are not going to turn into reality, we shouldn't stop dreaming. In fact, this should be a good reason to dream more & dream big. To most of the successful people dreaming was as natural as breathing. They could achieve anything because they could dream anything. One way to know the age of a person is to know the size of his dreams.So, if you want to keep fit & want to die young at the age of 90 or 100, dream big & dream more.