The study involved 2,345 random individuals aged 18 to 103 from across the United States. Participants listed people they interact with and answered how often each person nags, creates problems, or makes life difficult, with those causing trouble 'often' labeled as 'kranglefanter' or quarrelsome people. It found that troublesome colleagues, neighbors, or roommates are linked to increased biological aging, while negative relationships with family members show the strongest correlation.
However, a partner or spouse perceived as a 'kranglefant' does not have a significant correlation with biological aging. 5 percent faster, and biological age increases by roughly nine months for each problematic person. Being around such individuals acts as a form of chronic social stress, affecting hormone balance and inflammation.
I hope this research expands the way we think about healthy aging.
Researchers believe family problems may be particularly impactful because these relationships are often deeply rooted in daily life and harder to escape. Researchers suggest that marital relationships may be more complex, mixing negativity with strong positive aspects like love and care, or that spouses may be more 'avoidable' through boundary renegotiation, counseling, separation, or divorce. According to the study's press release, researcher Byungkyu Lee expressed hope that this research expands the way we think about healthy aging.
The study did not specify the exact methods used to measure the physical and psychological impact of negative relationships or how 'biological age' was defined and measured. It also leaves unclear the thresholds for labeling someone as a 'kranglefant' and whether it accounts for other factors like genetics or lifestyle.
We believe that family problems can be particularly important because these relationships are often deeply rooted in daily life. And they are harder to get away from.
Another possibility is that spouses may be more 'avoidable' than other close bonds. People may have more room to renegotiate boundaries, seek counseling, separate, or divorce.