Most of us think a long life comes down to good genes, healthy food and a gym membership. But research keeps pointing to something less comfortable: the circumstances you grow up in are linked to how long you live.
A gap you can measure in years
Poorer people, on average, live shorter lives, and this holds even in wealthy countries with generous welfare systems. In Norway, a 40-year-old man in the richest 1% can expect to live almost 14 years longer than one in the poorest 1%. In the United States the gap is nearly 15 years.
Women show the same pattern, though the gap is smaller. A large Norwegian study of more than three million people found about 8 years between the richest and poorest 1% of women.
Why does money change lifespan?
Nobody dies of “being poor”. The gap comes from many things that pile up over a lifetime. In the Norwegian data, the biggest causes of the difference were heart disease, smoking and substance abuse. Behind those sit everyday realities:
- Stress. Money worries, unstable work and poor housing wear the body down over time.
- Access to care. Missed check-ups and late diagnoses can turn manageable problems into serious ones.
- Environment. Air quality, safe places to exercise and healthy food shops vary a lot between neighbourhoods.
- Work. Physically demanding or hazardous jobs take a toll.
It starts in childhood
Research suggests the effects begin early. A British study that followed children from the 1930s found that household income, housing quality and early health all helped predict how long they lived. In other words, the starting line matters, and that is not something a child can choose.
Money isn’t the whole story
Wealthy countries still differ in how well they protect their poorer citizens. Norway and the US have similar gaps between top and bottom, but Norway’s poor and middle-income people live longer than their American equivalents. Researchers point to Norway’s largely tax-funded healthcare and its more evenly spread income and wealth.
A goal that may be missed
The problem is well known, yet progress is slow. A 2025 World Health Organization report warned that international targets for reducing health inequalities by 2040 are likely to be missed.
What does this mean for you?
Personal habits still matter, and it’s worth looking after yourself. But the research is a reminder that health is not only a matter of willpower. Better housing, good schools, fair access to doctors and safer neighbourhoods can add years to many lives, and that is a job for whole societies, not just individuals.
This article is general information, not medical advice.
Original source:
https://medicalxpress.com/news/2026-10-circumstances-linked.html
Transparency Note: This article was prepared with the assistance of artificial intelligence technologies. Every piece is thoroughly reviewed and verified by our editorial team, who retain full responsibility for the final content.
Picture: Gemini AI