A Little Sense Goes a Long Way

Hearing loss has often been linked to a greater likelihood of developing dementia, but the loss of another one of our senses might also point to significant health concerns. Recent studies suggest that changes in our sense of smell could signal an increased risk for heart attacks, strokes, and heart failure as we get older.

Research involving over 5,000 older adults found that a diminished sense of smell correlated with a higher chance of heart disease within just four years. This finding, detailed in a study published in JAMA Otolaryngology, raises questions about how our senses can reflect our overall health.

According to Dr. Neil Shah, a cardiologist with Northwell Health who wasn’t involved in the research, the connection is relatively straightforward. “The sense of smell…is partially related to blood flow to that part of the nose,” he explained. For our senses to work effectively, sufficient blood flow is essential, much like what is required for healthy coronary arteries.

Heart disease risks often increase for seniors. However, anyone with habits like smoking or high cholesterol might also be vulnerable. It’s worth noting, though, that young people shouldn’t jump to conclusions about heart issues just because they struggle to identify certain scents.

“Another part to consider is there can be significant overlap with overall cardiovascular health,” Shah mentioned. “It raises questions about whether the loss of smell is caused by cardiovascular disease or if it’s simply a part of the aging process.” There’s that age-old dilemma: which came first, right?

Despite the uncertainty, this research hints that a basic smell test could serve as an early warning for heart disease risk in older adults. Dr. Shah emphasized the need for additional studies. “Cooperating with healthcare teams for risk assessment is how this can meaningfully impact patient care,” he argued.

While the connection is intriguing, it shouldn’t lead to immediate panic. “This is not a definitive link,” Shah cautioned. “So, I don’t want anyone thinking, ‘I’m losing my sense of smell; I must be at risk of a heart attack.’” Perhaps it’s a reminder to pay attention to our health without jumping to conclusions.