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Senescence is when cells stop dividing. Cells that are about to enter senescence often become tumors which do the opposite of senescence, and they are making discoveries on what triggers senescence such as oxidative stress, DNA damage, and telomere(a long section of DNA that does not code for anything at the end) shortening(when the telomere gets so short the part of the DNA that actually codes for stuff starts being cut out). Senescence is one of the causes of aging. The existence of small nucleolar RNAs (snoRNAs) which do not code for anything but guide the chemical modification of other RNA. snoRNAs binding can impact many aspects of cells such as cell signaling. They discovered that the p53 gene was a major gene involved in senescence. A specific snoRNA SNORA13 is responsible for a lot of types of senescence. Without the SNORA13 which is required for the main type of senescence that causes aging, there would be much less aging which means that if we can change or remove SNORA13, that is one way to help cure aging.

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