But if we look in a different angle,we see, this is a state of body where body is able to create a higher level of sugar. Glucose is the only substrate for brain activities.
Thought process is the most important of brain activity that leads to creation,interaction etc.
In a state of Dhyanam[meditation] yogies passes hours together;even days to months. At this period which will be source of energy for Yogies brain activities?
In women when they are conceiving their physilogy is altered. Like wise in space shuttle man has to modify their pattern of food, work etc. Likewise in such a state where the body is completely immobilised for long span of time, the physiology has to be changed. And Diabetes is a state where the body is capable to do so.
Rishi Viswamitra[FRIEND(MITRA) OF THE WORLD(VISWA)] bestawed Sri RamaChandra two powers ,BALA & ATIBALA. By dint of these capacities man can strive many days without food;his brain will not be deprived of source of energy for longer times.
Is not this genetic change?
When Diabetes is uncontrolled this is killer. All yogies practices control over foods. But in Diabetes brain has a continuous supply of energy. That is IGT state[IMPAIRED GLUCOSE TOLLERENCE: fasting 110-126 mg & PP 140-200mg}can meet this condition where life is neither very endanger nor brain is hungry for energy in comparison to normal human being.
Most of the Sadhus,yogies suffer from Diabetes. Even in India the genetic propencity to develop Diabetes is very high .And to become a Yogi in India is very natural,common.And it happens.
Another counrty has such type of genetic likelyhood to become Diabetic ,USA.
Diabetes might be the evolution in human species to have a higher plane of brain naturally.