ELI5: Explain Like I'm 5

Apoptotic DNA fragmentation

Apoptotic DNA fragmentation is when DNA, which is the instruction book for your body, is broken into pieces. Apoptosis is a normal process that happens in your body, so this kind of DNA fragmentation helps make sure that old or unhealthy cells are replaced by new ones. When the body breaks up the DNA, it helps get rid of any mistakes that might have been made in the DNA, so it's important for your health.