Exercise really does influence how we age, and a new study shows how regular exercise in later life can help offset the decline of NAD+ and NAMPT, two important molecules that facilitate cellular energy production, in skeletal muscle.
NAD+ and mitochondria
The mitochondria are the power stations of the cell and provide the energy that our cells need in order to function. As we age, our mitochondria become increasingly dysfunctional and inefficient, and they produce excessive waste in the form of free radicals, which bounce around the interior of the cell, striking and damaging the cellular machinery within.
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