The Study
Social Isolation and Incidence of Chest Pain and Mortality in Older Adults of the United States Population: A Cross‐Sectional Study From NHANES 2001–2018
This study looked at a big group of people and found that those who felt more alone were more likely to say they had chest pain or to die sooner. But it didn’t make people more alone to see what happened — it just watched what was already happening, so we can’t say being alone caused it.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
People who don't have many friends or family around are more likely to feel chest pain and die earlier, even if they don't have heart disease.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 559 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — this means being lonely is as risky for your life as smoking or having high blood pressure, even if you're otherwise healthy.
- 2People with high social isolation were 52% more likely to have chest pain and 65% more likely to die from any cause.
- 3Those without heart disease had a 2.43 times higher risk of death.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Health Science Reports
Year
2026
Authors
Xiaozhen Zheng, Shaorui Niu, Jiayi Liang, A. Lu, Yuhao Zhou, Kangming Chen, Xing Huang, Hui Wang
Related Content
Claims (6)
Adults in the U.S. who have less social contact, live alone, or are not married are more likely to report chest pain that lasts 30 minutes or longer, even when accounting for other health and demographic factors.
U.S. adults who report high levels of social isolation have a 65% higher risk of dying from any cause during the study period, even after accounting for factors like age, sex, income, smoking, and heart disease.
U.S. adults who experience high levels of social isolation have a 143% higher risk of dying from any cause compared to those who are less isolated, even if they have no prior heart disease.
In the U.S., adults who report being socially isolated are more likely to report chest pain than those who are not socially isolated, even when accounting for factors like age, income, and existing heart conditions.
People who feel socially isolated are more likely to experience chest pain if they do not already have heart disease, which may indicate that social isolation triggers early physical stress responses in the body, not just reflects existing heart problems.
Prolonged social isolation is associated with sustained activation of inflammatory pathways that contribute to gradual deterioration of heart tissue and function.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.