The Hangal Effect

I'm sure you've heard of AK Hangal. Now the point is, the man practically looked the same from 1970's till the 1990's! I wonder if the process of aging could be arrested at a younger stage? What if he found the 'Fountain Of Youth' - only, he was quite old when he found it.
So here's to Mr. AK Hangal, the quintessential Old Man of Indian Cinema!