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Scientists are still trying to figure out whether humans have a maximum age or if they can live forever. One thing we do know is that individual cell aging is related to the aging we see and feel in our bodies. In molecular biology, yeast is a typical model that is frequently used to research aging. In 2020, researchers discovered that yeast cells might age in one of two ways: in one, ribosomal DNA suffered less silencing and nucleoli were damaged; in the other, mitochondria were impacted and heme accumulation was decreased. According to the study, there are two different types of terminal aging.

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