Kumbha Mela witnesses thousands of yogis and sadhus who come down from the deep Himalayas to participate in the world every few years.
I too was surprised when I got to know that many of them have been hanging out for a few hundred years. It has been a matter of deep research interest for me as to what helps them stay hale and hearty and much much more energetic than us for hundreds of years.
Most of us are conditioned to wrongly believe that as long as we are not taking any medicines, we are healthy. How do you know that you are not gathering a disease that will only manifest a few weeks or months later? After all, a disease is gathered through the karmic imprints left on our cells from the emotional and physical implications of our daily circumstances.
Health is about not gathering any possibility of disease in your cellular chemistry. While this may sound a tall claim, it is totally possible. All diseases are a result of cellular pollution. Our Yogis had mastered this art of defeating cellular pollution which was two-fold: