too bad rapamycin has side effects of immuno suppresant..just like resveratrol in high dose is toxic..btw, seems like these drugs is acting on slowing the senescence process.. it prolonged 30+% of mice lifespan..and no human test result...zz caloric restriction can prolong life of mice too, anti-oxidant drugs can slow aging too..still way to go for immortality..i think finding ways to control telomerase action to counter Hayflick limit would be more hopeful to reach immortal..

immortality doesnt necessary mean u will need to suffer..u can end ur life anytime when u're bored of living, which many ppl does time to time...