Study Suggests Toxic Relationships May Accelerate Aging

Difficult relationships may do more than cause emotional stress — they could also have measurable effects on physical health.

A new study published in the journal Proceedings of the National Academy of Sciences suggests that negative social relationships may be linked to faster biological aging.

Researchers found that individuals who reported having “hasslers” — people in their social networks who frequently create conflict or stress — showed signs of accelerated aging at the cellular level.

How Negative Relationships Affect the Body

The research examined more than 2,000 participants in Indiana aged 18 and older, analyzing both their social networks and biological markers of aging.

Biological aging refers to how quickly the body ages at a cellular level, which may differ from a person’s actual chronological age.

Using DNA-based biological clocks, researchers discovered that individuals who reported having stressful social relationships showed higher levels of inflammation, more chronic health conditions and increased symptoms of anxiety and depression.

According to the study, each additional “hassler” in a person’s social network was linked to about a 1.5% faster pace of aging and roughly nine months older biological age.

Family Relationships Can Be Especially Stressful

The study also found that the type of relationship mattered.

According to co-author Byungkyu Lee, both family members and non-family relationships showed negative associations with health.

Interestingly, the study did not find the same effect with spouses.

Researchers suggested this may be because marital relationships often involve a mix of both positive and negative interactions, while difficult family or social relationships can be harder to avoid.

The Role of Chronic Stress

Experts say negative relationships may act as chronic stressors, gradually affecting the body over time.

Persistent stress can influence inflammation levels, mental health and overall disease risk.

The researchers say this highlights the importance of maintaining a balanced and supportive social network.

Managing Difficult Relationships

Completely avoiding stressful relationships is not always possible, particularly when family members are involved.

Instead, experts suggest finding healthier ways to manage these interactions.

Building positive relationships through community groups, volunteering or shared hobbies may help counterbalance the stress caused by difficult individuals.

Important Study Limitations

Researchers emphasized that the findings show an association, not direct cause and effect.

The data was based on self-reported relationships from a single Midwestern population, meaning the results may not apply to all groups.

The study also measured data at one point in time, so it cannot determine whether difficult relationships caused accelerated aging or if other factors were involved.

Still, the findings highlight how social relationships may play an important role in overall health and aging.