Each organ in our body is made up of millions of cells and without effective mitochondria in our cells, our organs will lack the energy to do their jobs. (mindbodygreen.com)
Because each cell has its own unique mutation, when researchers examine a pinch of skin or drop of blood containing millions of cells, most mitochondrial mutations are hidden. (sciencedaily.com)
When this happens in millions upon millions of cells, the organism itself ages and biological function begins to diminish. (globalhealingcenter.com)