CRISPR/Cas9 is the term of a revolutionary application found in natural systems of bacteria, enabling us to modify very precisely specific genes from every living organism, even humans. Human diseases, caused by single or multiple gene mutations could be extinguished by modifying (`repairing`) the defect genes or normal genes can be easily mutated to understand their diverse effects.
There have been plenty of gene-editing methods before, but they were much more time-intensive and complicated. This method creates a new opportunity to elucidate the secrets of longevity and rejuvenation, with CRISPR/Cas9, it is possible modify longevity related genes and study their impact directly. We can change genes which are correlated to a short live-span. In long term, these basic research will hopefully lead to genetic adjustments in humans to prolong our life via modifying genes which are responsible for longevity and homeostasis.
To find out more watch this great video from "Kurzgesagt" or read our a bit more scientific description.