Global data suggests that people are living longer than ever before. A report from the CDC indicates that life expectancy in the U.S. is projected to reach 79 years in 2024, which would be an all-time high, with further improvements expected in 2025.
This positive trend seems linked to a decrease in fatalities from various causes, including accidents, the coronavirus, drug overdoses, heart disease, and cancer.
Potential for Longevity
In light of ongoing research into biological aging, one geneticist posits that if current trends persist, we could see humans living up to 150 years. Dr. Steve Horvath, a leading researcher at the Altos Institute in Cambridge, shared this outlook in a feature on Time magazine but didn’t specify when this might happen.
“The number 150 is quite popular nowadays,” he remarked confidently. “I firmly believe we’ll reach that point. It’s inevitable.”
Horvath, who focused his studies on aging markers in the body, created the first “aging clock” in the early 2010s. This method estimates biological age through molecular changes in cells. While it uses saliva, it has proven consistent across multiple tissues, such as blood and skin.
Other researchers have since developed similar biological aging clocks, which reliably predict the risk of mortality.
The Future of Aging
Horvath acknowledges that while he once hoped for a thousand-year lifespan, he remains optimistic about potential longer lifespans. “Just think about an additional century of biomedical advancements. What could that mean for our health?” he wondered. “Progress is certainly within reach.”
He also suggested, “If we can sidestep wars and pandemics, our species is bound to find ways to significantly extend life.”
Expert Opinions
Dr. Eve Henry, the chief medical officer at a personalized health platform, remarked that Horvath’s projections are “not impossible” and described the study as “very optimistic.” According to her, accurately measuring biological age and aging rates in real-time is the critical first step.
“Measuring effectively opens up new avenues for studying aging,” she added, though she noted that achieving the extent of longevity Horvath envisions will call for groundbreaking interventions to reset our physiology.
While she hasn’t yet seen such a groundbreaking intervention, she expressed excitement about current research possibilities.
Quality Over Quantity
Henry also highlighted that any increase in lifespan—from 50 to 70 years—will hinge on the quality of life those extended years provide. “There’s a vast difference between adding years if one can maintain independence with modern tools and support, versus merely living a decade longer without the necessary care,” she explained.
As promising as this research appears, she concluded, “Only time will reveal what human lifespans will ultimately look like.”
