When life comes to a halt...there's a restart!

Is it possible to stop people from ageing? Its quite a helpless situation when you see the people you love , in not the best of conditions and the worst part is, you cannot do anything about it. Nana( my grandfather) has been the most lively human being Ive ever encountered in my life. When I was a little kid, I would just be amazed at the different kind of activities he would indulge in .....social service, play writing , organising big functions where he would collect the people from the whole area and have a get together. Each and every festival was celebrated with equal delight, on Christmas we used to gather at Aunt Dorothys place, on Holi , nana's friends would barge into the house and carry him away to play holi, on Eid the whole house used to smell of delicacies with loads and loads of people pouring in:) It was just beautiful.
Today when I see him, lying on the bed, not in the best of moods, irritated with his eye sight, as he loves to read, all the bygone days come back in a flash and highlight the stark contrast. But the best part is, he never gave up and never will. There are days when he is in his best moods and at that point of time, I can see a young man, rejuvinated with the great spirit that he had always possessed and singing the good old tunes of life......simply at his poetic best;)