This content originally appeared on DEV Community and was authored by Brent Ochieng
When I began exploring global life expectancy data from 1960 to 2023, I wasn’t just curious about numbers; I wanted to answer a deeper question:
Are we moving toward a future where living to 100 becomes the norm?
As a Kenyan data analyst, I’ve seen firsthand how conversations about health often focus on the here and now, outbreaks, access to hospitals, and the affordability of treatment. But when I pulled 63 years of data into a Jupyter Notebook and began visualizing the trends, something fascinating emerged.
What the Data Reveals
Globally: Life expectancy has risen by more than 15 years since 1960. That’s a whole extra childhood added to the average life.
Europe: Life expectancy jumped from 68 years (1960) to over 80 today — and Prophet forecasts suggest 82–84 years by 2049.
America: The steady climb was suddenly interrupted in 2020–21, a powerful reminder of how global crises can undo years of progress almost overnight.
East Africa: My favorite part of this project is seeing that despite decades of challenges, our region is catching up, with steady gains year after year.
When I plotted East Africa’s numbers, it felt personal. It told a story of resilience — of how healthcare campaigns, better nutrition, and expanded access to medicine have changed what it means to grow old here.
Modern Medicine’s Silent Revolution
Modern medicine has completely redefined what it means to age. Vaccinations, antibiotics, improved maternal care, and chronic disease management have turned once-fatal illnesses into treatable conditions.
When we talk about life expectancy increasing, we’re really talking about millions of lives saved. For instance, children living past their fifth birthday, mothers surviving childbirth, and elders living long enough to meet their great-grandchildren.
But the data also reminds us: progress is not guaranteed. The pandemic dip in 2020 is a warning that gains can be fragile.
Will We Get to 100?
The projections show we are inching closer, but slowly. If Europe reaches 84 years by 2049, that’s still 16 years away from 100. To cross that line, we will need more than just medical innovation. We’ll need:
Preventive healthcare that keeps people healthier for longer.
Equitable access to treatments across countries and income levels.
Social systems that support ageing populations without leaving anyone behind.
What This Project Taught Me
As analysts, we often focus on the code, the models, the plots. But data like this reminds us that behind every line on a chart is a story about humanity.
For me, this was more than an analysis. It was a chance to reflect on how far we’ve come, and what it will take to ensure that a child born in Nairobi today might one day celebrate their 100th birthday not as an exception, but as part of the new normal.
You can explore the full analysis, code, and forecasts here:
https://github.com/BrentOchieng/Global-Life-Expectancy-Trend-1960-2049
This content originally appeared on DEV Community and was authored by Brent Ochieng
Brent Ochieng | Sciencx (2025-09-16T09:48:23+00:00) Will Humans Ever Live to 100? A Data-Driven Journey Through Life Expectancy. Retrieved from https://www.scien.cx/2025/09/16/will-humans-ever-live-to-100-a-data-driven-journey-through-life-expectancy/
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