@Ricalynn I'm four generations into a challenge in which I've been diligently documenting days and times of eating for two notices, celebrate a rocking birthday notices, and notices from Grim.
In all cases but one, all the sims died almost exactly 24 hours from the time they received the final notice. None of these sims had the Long-Lived trait from the Bodybuilder aspiration.
One sim however had the Long-Lived trait (but no active trait) and he lived 21 days after receiving the final notice.
In my iDC, I had one sim who lived 11 days past the final notice; he had both the Active and Long-Lived traits.