https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824972/ [ Menopause may have arisen to protect women from the increased risk of childbirth in later age, keeping them alive longer to take care of the children they had already. ]
https://lithub.com/how-cells-complex-choreography-sustains-and-ends-human-life/ [ The simplest way to think of aging is that it is the accumulation of chemical damage to our molecules and cells over time. This damage diminishes our physical and mental capacity until we are unable to function coherently as an individual being—and then we die. ]