Therefore tissues like the muscle, relegated by modern life to a marginal role, are in reality biologically essential.

At the basis of every movement, muscles are a very ancient tissue that still uses metabolic pathways, like anaerobic glycolisis, developed when the atmosphere on Earth was lacking oxygen.

Muscles also are extraordinarily versatile, easily capable of increasing up to 50 times their metabolic rate in response to work loads. However, as for all biological systems, the consequence of disuse is degradation and pathology.

Details make the difference in nature. If the 99% of our DNA is identical to the one of chimpanzees we must then realize that apparently enormous inter-individual differences are genetically microscopic.

For this we think there is nothing worse than being rough and vague when dealing with the human body.