Selectively eliminating dysfunctional mitochondria (mitophagy) and replacing them with new mitochondria (mitochondrial biogenesis) helps us stay biologically younger. But what exactly are the functions of mitochondria and how does mitochondrial health affect aging?

Similar to many other cellular processes, the creation of new mitochondria (a process called mitochondrial biogenesis), and the interacting pathways that influence it, suffers with aging. This is the bad news. The good news is that there are things we can do to better support maintaining a fitter mitochondrial network.