Every workplace, family, and friend group seems to have someone whose presence makes ordinary days heavier, and people have long sensed that such company wears on us. A new study in the Proceedings of the National Academy of Sciences, drawing on more than 2,300 adults in Indiana, now gives that old intuition a biological register: the more people in one's close circle who regularly stir up trouble, the faster the body's DNA markers appear to age. The link is one of association rather than proven cause, and it leaves open the older human question of how much of who we are is shaped by the peopl
Difficult People May Speed Up Your Biological Aging, New PNAS Study Suggests
Each additional hassler was linked to roughly 1.5 percent faster aging
Mark
So what did the study actually look at?
Mimi
Over 2,300 adults in Indiana. They answered detailed surveys about their social networks, and they gave saliva samples used to measure biological aging through DNA markers.
Mark
And who counts as a hassler?
Mimi
People in your social circle who regularly cause problems or make life more difficult. Not strangers, people you're connected to.
Mark
What's the headline number?
Mimi
Each additional hassler was associated with roughly 1.5 percent faster biological aging.
Luke
I want to stress "associated." That's a link, not proof that these people cause the faster aging.
Mimi
Fair. The reporting doesn't claim a mechanism either.
Luke
Right, and we don't know from this piece how "hassler" was determined beyond the survey, or how big 1.5 percent is in practical terms. It's also one study in one state.
Mark
So why does it still matter?
Mimi
It points at relationships as a possible health factor, measured with a biological marker rather than just self-reported stress.
Luke
Worth taking seriously, but the real test is follow-up work on whether reducing contact with difficult people changes the aging measure.
El Pulso
- A peer-reviewed study places a tense, uncomfortable truth on the table: the difficult people in our own circles may be tied to faster biological aging.
- Each additional 'hassler' in a person's social network was linked to roughly 1.5 percent faster aging, measured through saliva-based DNA markers.
- Researchers surveyed over 2,300 Indiana adults about their networks and sampled their saliva, navigating the complexity of separating everyday friction from persistent harm.
- The findings remain associational, so the story is still unresolved: no one yet knows whether stepping back from difficult people would actually slow the clock.
Every workplace, family, and friend group seems to have someone whose presence makes ordinary days heavier, and people have long sensed that such company wears on us. A new study in the Proceedings of the National Academy of Sciences, drawing on more than 2,300 adults in Indiana, now gives that old intuition a biological register: the more people in one's close circle who regularly stir up trouble, the faster the body's DNA markers appear to age. The link is one of association rather than proven cause, and it leaves open the older human question of how much of who we are is shaped by the people we choose, or are unable to avoid, every day.
A columnist at Inc. once sat in a class where someone described the people who make life harder for everyone around them. No one said the word "jerk," but the idea stuck, and he spent the rest of the session trying to decide whether the class jerk was someone in the room or himself.
Now science has added a sharper edge to that old question. A study published in the Proceedings of the National Academy of Sciences looked at "hasslers," the people inside a person's own social circle who regularly cause problems or make life more difficult, rather than strangers or passing irritations.
The researchers worked with more than 2,300 adults in Indiana. Participants described their social networks in detailed surveys, and provided saliva samples from which the team measured biological aging through DNA markers, a gauge of how fast the body seems to be aging rather than how many birthdays someone has had.
The central result was a steady pattern: each additional hassler was associated with roughly 1.5 percent faster biological aging. The source material does not explain how difficult relationships might alter those markers, and the word "associated" is doing important work. The columnist's own response is lighter, a toast to science, to long life, and to being careful about who gets close and who gets our time.
What comes next is follow-up research that tests whether reducing contact with difficult people actually slows aging. Until then, the finding is a suggestive link, not a prescription.
A columnist for Inc. recently recalled a moment from a class he attended, when someone in the room made a point about the people who make life harder for everyone around them. The word "jerk" was not actually used, he admits, but the idea landed. It gave him a quiet goal for the rest of his time there: work out who the class jerk was, or take a long look in the mirror.
Now, he writes, science has made the notion a little more serious. A new study published in the Proceedings of the National Academy of Sciences concludes that difficult people in your life may make you age faster.
The researchers focused on a category they called "hasslers." These are people in someone's social circle who regularly cause problems or make life more difficult. The framing is specific: the study is not about strangers or passing irritations but about people who are part of a person's own network.
The work drew on data from more than 2,300 adults in Indiana. Participants completed detailed surveys about their social networks, which let researchers identify who counted as a hassler in each person's life. They also provided saliva samples. From those samples, the researchers measured biological aging through DNA markers, an approach that tracks how quickly the body appears to be aging, as distinct from the number of birthdays a person has had.
The central result is a dose-like pattern. Each additional hassler in a person's life was associated with a roughly 1.5 percent faster pace of biological aging. The more difficult people in the circle, in other words, the faster the biological clock appeared to run.
The word "associated" matters here. The finding describes a link between the two measures, not a proven mechanism, and the source material does not detail how difficult relationships might translate into changes in DNA markers. The columnist's own framing is lighter: a toast to science, to living longer, and to being careful about whom we let close and who gets our time.
What to watch for next is follow-up research that tests whether reducing exposure to difficult people actually slows biological aging, which would move the finding from correlation toward something people could act on.
Citas Notables
Difficult people in your life might actually make you age faster.— Inc. columnist summarizing the PNAS study
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