Hyderabad, June 28 -- Since time immemorial, human beings have yearned for longer and healthier lives. In our folklore, there are some people who have hungered for immortality. Mankind's cherished aspirations of possessing good health and longevity have led to some of our outstanding discoveries in science and preventive medicine.

But despite trying out various lifestyle and dietary changes, many of us develop diseases as we age. We lose strength and agility in our limbs. Added to that is a mental decline that sets in with age. Under life's pressures, many develop heart problems and die in younger age. Some well-known examples are singer KK, comedian Raju Shrivastav (who died while working out at a gym), Kannada actor Puneeth Rajkumar an...