Why is the number of mitochondria in the cells of the heart muscle sharply reduced in winter sleeping marmots and hibernating bats?

The number of mitochondria in the cells of the heart muscle depends on the functional load on the heart and the expenditure of energy, which is produced and accumulated in the high-energy ATB bonds in the “energy stations” of cells, which are mitochondria. During hibernation in the body of animals, metabolic processes are slowed down and the load on the heart is minimal.

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