Significance of Fasting consistently leads to longevity

Fasting has been advocated in different relegions in different ways.  Ramadhaan is known for that among muslims. Lent is period of similar nature among Christians and Hindus have their regular fasting on particular days of the month. Scientifically it has been proven that calorie restriction is the most effective and well-documented pathway to longevity among animal studies.

This has got a great effect on the Mitochondria of the cell (powerhouses of the body). Scientists say that calorie restriction 
stress is similar to a condition the body produces on excercise. This leads to the secretion of NAD or Nicotinamide Adenin 
di nucleotide in the mitochondria of the cell. This has been termed as Sirutin 2, 3 , 5 and 5 . Increased levels of the same 
leads to the burning or usage of existing fat in the body thus resulting in slowing down of the ageing process in the body. 
Furthermore this also leads to slimming down process. There is a lot of reasoning scientific facts that seem to be available
supporting the theory called mitochondria oasis hypothesis. Resultant is that its good to fast !