"The mitochondria just give up earlier than other parts of the cell because of the wear and tear that they're subjected to. They're the canary in the coal mine of cellular dysfunction."
"They also help immune functioning, create peptides that send messages between organs, and are essential for general cellular housekeeping. But as we get older, the number of mitochondria in our cells and their ability to function decline."
"The organelle begins producing more and more reactive oxygen species (ROS), a toxic byproduct of the energy production process. That has an effect on our overall health."
Mitochondria, cellular organelles responsible for energy production, play critical roles beyond generating ATP from food. They support immune function, create signaling peptides between organs, and maintain cellular housekeeping. As aging progresses, mitochondrial numbers decline and their functional capacity diminishes. This deterioration causes increased production of reactive oxygen species (ROS), toxic byproducts of energy metabolism that damage cellular health. Scientists view mitochondria as indicators of broader cellular dysfunction, comparing them to canaries in coal mines. However, debate exists about causation: some researchers propose that mitochondrial decline drives aging and disease, while others suggest aging and disease cause mitochondrial dysfunction.
Read at Fast Company
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