we look at the power pack of the cell :the mitochondria.
These tiny ellipsoid energycenters contain their DNA, albeit a small strand that has limited codes. When a cell divides to form two new cells (the process of renewal), the mitochondria also divide independent of the nucleus. They keep dividing and thereby repopulate the new cells with enough power centers to energize each cell.
With aging, the short DNA strands in the mitochondria incur errors or mutations. Some of these significantly damage the integrity of the codes and eventually stop the production of new mitochondria.
Cells die without energy to sustain them, resulting in tissues that either quit working or become highly impaired. For example, muscle mass declines with aging, most likely from such a mechanism.
Cell death caused by mitochondria damage appears to be more important in aging than stress, at least in mice, the animal used in this research. (G.C.Kujoth et al., "Mitochondrial DNA Mutations, Oxidative Stress, and Apoptosis in Mammalian Aging," Science 309 (2005); 481-84.)
Use Water-cure. Rather be thankful for the timely warning, and do something about it.
Drink at least 10% of your own daily water-quota (31.42 ml multiply by your present body weight(kg), every 90 minutes. Use 1/4 teaspoon of sea-salt in your daily diet, for every 1250 ml water drank.
Pain is a sign/signal produced by dehydration in the human body. Pain may be common but it is not normal.
To simplify complications is the FIRST essential of success.