Can loneliness damage your heart?
The study highlights how loneliness, rather than social isolation, is linked to an increased risk of degenerative heart valve disease.
Adults experiencing loneliness are at a heightened risk of developing degenerative heart valve disease.
A recent study published in the Journal of the American Heart Association reveals that the finding persists even after accounting for traditional heart disease risk factors and genetic predispositions.
Valvular heart disease, a condition where one of the heart's four valves malfunctions, has been on the rise.
According to the American Heart Association's 2026 statistics, this disease accounted for over 440,000 deaths in the U.S. from 1999 to 2020. The study highlights how loneliness, rather than social isolation, is linked to an increased risk of degenerative heart valve disease.
The research, involving data from approximately 463,000 adults enrolled in the UK Biobank, indicates that loneliness could be an independent and modifiable risk factor for this condition.
Participants who reported higher levels of loneliness had a 19% increased risk of developing degenerative valvular heart disease, a 21% higher risk of aortic valve stenosis, and a 23% higher risk of mitral valve regurgitation.
Dr. Zhaowei Zhu, a cardiovascular medicine expert at The Second Xiangya Hospital, China, stated, "Our findings suggest that loneliness is a significant risk factor for degenerative valvular heart disease." The study underscores the importance of addressing loneliness as a potential preventive measure against heart valve disease.
Unhealthy lifestyle habits, such as smoking and inactivity, were found to partially explain the link between loneliness and heart valve disease.
However, social isolation, defined as living alone or having minimal social contact, was not significantly associated with increased risk.
Dr. Cheng Wei, a co-author of the study, emphasised the need for healthcare professionals to recognise loneliness as a health risk. "Addressing loneliness could delay disease progression and reduce the need for surgical interventions like valve replacement," he said.
Though the study was observational and cannot prove causation, it suggests a notable association between loneliness and heart valve disease.
Future research is needed to validate these findings across diverse populations and explore interventions that could mitigate the risks associated with loneliness.