Senescence (&#x2F;sɪˈnɛsəns&#x2F;) (from Latin: senescere, meaning &quot;to grow old,&quot; from senex) or biological aging (also spelled biological ageing).<p>One of the reasons cells age is to not get cancer. The cells that age can still get cancer! And probably more likely to get cancer than young cells. But less likely than if they didn&#x27;t go into senescence at all.