Heart Attack Smell Changes: A Potential Warning Sign
- A recent study published in JAMA suggests a potential link between the loss of the sense of smell and an increased risk of heart disease in older adults.
- The study doesn't definitively establish why smell loss is linked to heart disease.It raises questions about whether the loss of smell is simply a part of the natural...
- Cardiovascular disease remains a leading cause of death globally.
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Loss of Smell May Signal Increased Heart Disease Risk in Older Adults
Table of Contents
Published November 9, 2025 | Last updated 18:55 (Mecca time)
The Connection Between Smell and Heart Health
A recent study published in JAMA suggests a potential link between the loss of the sense of smell and an increased risk of heart disease in older adults. Researchers propose that a simple “sniff test” could serve as an early warning sign for cardiovascular issues.
The study doesn’t definitively establish why smell loss is linked to heart disease.It raises questions about whether the loss of smell is simply a part of the natural aging process, or if it exacerbates existing risk factors for cardiovascular disease.Nonetheless of the order in which symptoms appear, the correlation warrants further inquiry.
Cardiovascular disease remains a leading cause of death globally. According to the World Health Organization, CVDs are responsible for 32% of all deaths worldwide. Early identification of risk factors is crucial for preventative care and improved patient outcomes.
How Smell Loss Might indicate Cardiovascular Issues
the olfactory system (responsible for smell) and the cardiovascular system are interconnected in several ways. One theory suggests that damage to the olfactory nerve, which can occur due to vascular issues, may mirror damage occurring in the heart. Another possibility is that inflammation, a key player in both heart disease and smell loss, could be the underlying link.
Hyposmia, or reduced ability to smell, is more common with age. A study published in JAMA Otolaryngology-Head & Neck Surgery in 2016 found that over half of individuals aged 65 and older experience some degree of smell loss. Source.Though, the new research suggests that the severity of smell loss might potentially be a significant indicator of cardiovascular risk.
Researchers are exploring whether smell loss could be an early marker of endothelial dysfunction – a condition where the lining of blood vessels doesn’t function properly. Endothelial dysfunction is a precursor to atherosclerosis (hardening of the arteries) and other cardiovascular problems.
Impact on Patient Care and Future Research
The researchers emphasize that this study is not a diagnostic tool.Rather, it highlights the importance of communication between patients and their healthcare teams. By discussing any changes in their sense of smell, patients can allow their doctors to better assess their overall cardiovascular risk.
Further studies are planned to investigate the underlying mechanisms linking smell loss and heart disease,and to determine the optimal way to incorporate smell tests into routine medical checkups.These studies will also explore whether interventions to improve smell function can also improve cardiovascular health.
Understanding Cardiovascular Risk Factors
several factors contribute to the progress of cardiovascular disease. These include:
- High blood pressure