I’ve read quality of life plays a factor but there was no further definitions for the more smooth-brained persons like myself
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We don’t age slower, we just don’t die as early from things like heart attacks, strokes and infectious diseases. Life expectancy is not the same as aging slower, it just means on average people dont die as young.
The maximum lifespan of humans has actually not changed, there were 100 year olds in the 1980’s and in the 1700s (for a more extreme example) just as there are 100 year olds now. The difference is back in the 1700’s roughly one third of population would die before age 1 and many more would die before reaching adulthood. Then in their 40’s/50’s/60’s etc. there were no good interventions for heart disease, stokes etc. Reductions in childhood mortality make up most of the improvement in life expectancy.
Today we vaccinate children so they don’t die in their first year, we have antibiotics, better nutrition etc to prevent other childhood diseases. We have blood pressure and cholesterol medications (which were just being invented in the 80’s) to prevent heart disease and we can literally bring people back to life after they have heart attacks. Odds are you know someone who has a cardiac stent or a pacemaker or defibrillator implant. That person didn’t age any slower but they are alive today thanks to that technology, in the 1700s they would have died.
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