As millions of Americans enter middle age, a new study underscores the crucial link between heart health and long-term cognitive function. Researchers have discovered that even subtle signs of heart muscle damage, detectable thru elevated levels of the protein troponin, may predict an increased risk of dementia decades later [[1]], [[2]]. The 25-year study, published in the *European Heart Journal*, adds to growing evidence that proactively addressing cardiovascular health could be a key strategy in preventing cognitive decline [[3]].
Slightly elevated levels of a protein typically released when the heart muscle is damaged may signal hidden heart issues that could increase the risk of dementia later in life, according to a new study. This finding highlights the critical connection between cardiovascular health and long-term brain function, an increasingly important area of public health research.
Researchers found that even modest increases in troponin levels – a marker of heart strain often associated with a heart attack – without noticeable symptoms can indicate underlying heart damage that gradually affects blood vessels and blood supply, potentially impacting the brain.
“Poor heart health midlife increases the risk of dementia later in life,” said Professor Eric Brunner at University College London, in a press release. “The brain damage that occurs with dementia accumulates slowly over decades before symptoms appear.”
The study, published in the journal European Heart Journal, followed nearly 6,000 participants for an average of 25 years. During that time, participants had their troponin levels measured and underwent repeated cognitive testing.
The research suggests that monitoring troponin levels, even in the absence of acute cardiac events, could help identify individuals at increased risk for cognitive decline. The findings could lead to earlier interventions focused on improving cardiovascular health to potentially mitigate the long-term risk of dementia.
