Skip to main content

The context you need, when you need it

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

Join now

Forget Ebola, it’s soda that should terrify you

Scott Olson/Getty Images

Drinking soda regularly can age the body just as much as smoking regularly, a new study finds.

A team of public health researchers, led by the University of California San Francisco’s Elissa Epel, looked at the cellular impact of regular soda consumption (diet sodas were excluded). Specifically, they looked at the length of study participants’ telomeres: the caps at the end of chromosomes that, as they describe it, “protect the genomic DNA from damage.”

Telomeres naturally get shorter as we get older. But separate research has shown that certain behaviors, such as smoking, can also cause shrinkage. And shorter telomere length is associated with a higher risk for heart disease and some cancers.

Epel and her team used the federal National Health and Nutrition Examination Survey and found that those who drank more soda tended to have shorter telomeres. They found that each daily 8-ounce serving of soda (two-thirds of a can of Coke) was equivalent to an additional 1.9 years of aging. A daily 20-ounce serving (the standard, plastic bottle size for sodas) was associated with 4.6 years of additional telomere aging — the same damage researchers have previously found among regular smokers.

This is just one study and, as the researchers write, research into telomere's associations with health conditions is a "relatively new field." But it's part of a growing body of research showing that soda, albeit, delicious, is terrible for our health.

Need a reality check about Ebola? Here's the basics in 1 minute:

More in Health Care

Health
Hantavirus will test if the world learned anything from CovidHantavirus will test if the world learned anything from Covid
Health

The hantavirus outbreak is still small. But it’s a huge test for a battered public health sector.

By Dylan Scott
Health
How worried should I be about hantavirus?How worried should I be about hantavirus?
Health

5 questions about the hantavirus cruise ship outbreak, answered.

By Dylan Scott
Good Medicine
Do health influencers actually know what they’re talking about?Do health influencers actually know what they’re talking about?
Good Medicine

Most health influencers don’t have real credentials — but they are more influential than ever.

By Dylan Scott
Health
A major new study found AI outperformed doctors in ER diagnosis — but there’s a catchA major new study found AI outperformed doctors in ER diagnosis — but there’s a catch
Health

An Open AI model posted impressive results in emergency care. But we still need human doctors.

By Dylan Scott
Health
Please don’t inject yourself with bootleg peptidesPlease don’t inject yourself with bootleg peptides
Health

Why Americans have gone wild self-experimenting with the hottest thing in wellness: Peptides.

By Dylan Scott
Health
RFK Jr. is in his influencer eraRFK Jr. is in his influencer era
Health

The real reason Trump’s health secretary is launching a podcast.

By Dylan Scott