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How many years
can you gain?
A research-backed estimate based on your actual lifestyle — and the years you can still get back by changing what’s worth changing.
Your starting line
A statistical estimate of years remaining at your current pace, based on cohort studies and meta-analyses.
Your years gained
Toggle real lifestyle changes and see your projection grow. Quit smoking, sleep more, drive less. Math updates live.
The receipts
Every number is sourced. Tap any factor to see the studies behind it. No black box, no fear-mongering.