Sweden · 2025 death rates

What if we cured cancer?

Swedes would live about three years longer. Not twenty. Pick any disease below, or slow aging itself, and see why.

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Cure
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Who

Where the deaths go Out of every 1,000 Swedes living their whole lives at today's death rates, how many die at each age, and of what. The dashed line is Sweden today. Cure something and its colour disappears, but the deaths don't: they move to older ages and other causes.

What Swedes die ofToday's ratesWith this changeTypical age at death
Still alive The share of people still alive at each age. The thin grey line is Sweden today, the bold line is with the change you picked. The green area between them is the extra years: averaged over everyone, it is exactly the number at the top.

One cure at a time

Years of life expectancy at birth gained if each one disappeared completely, with nothing else changed. Tap a row to try it above.

Why so little?

What could make these numbers wrong

Diseases are treated as separate

Someone saved from cancer is assumed to carry the same risk of everything else as anyone their age. In real life the same old body carries all of them, so a real cure would probably give a little less than shown. That makes the point of this page stronger, not weaker.

A death certificate names one cause

Very old people usually have several illnesses at once, and the doctor writes down the main one. Shifting a death from "heart" to "dementia" changes the colours here, not the total.

The cause data are coarser than the age data

"Slowing aging" is a what-if, not a treatment

It assumes every cause of death slows down together, starting at 30. Nobody can do this to people yet. It shows what would be on the table if someone could.

The far end of the slider is the least certain part

Accidents slow down too

"Everything else" is a big group

It holds diabetes, infections and COVID-19, plus every disease group too small to get its own button: kidneys, gut, Parkinson's and other nerve diseases, and deaths where the cause was unclear. Together they are about a quarter of all deaths, which is why curing "everything else" scores so high.

Life expectancy is a snapshot

"Life expectancy at birth" means: how long a baby would live if this year's death rates never changed. It is a summary of today, not a forecast. Real babies born today will very likely live longer than this.

How it is worked out

Statistics Sweden publishes, for every age from 0 to 110, the chance of dying within the year. The cause-of-death register says what share of the deaths at each age came from each cause. Multiplying the two gives a yearly risk of dying from each cause at each age.

Curing a disease sets its risk to zero and leaves the others untouched. Then the page follows 1,000 imaginary Swedes from birth, year by year, and counts how long they live on average. Demographers call this a cause-deleted life table. Slowing aging instead stretches out the age curve after 30: at 10% slower, an 80-year-old carries today's risks for a 75-year-old.

Published estimateTheirsThis page, Sweden

Sources