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Your Heart and Brain Are More Connected Than You Think

  • Rafka Abou-Khalil

    • Summary

    Canada's first brain–heart clinical practice guideline, led by Dr. Jodi Edwards at the University of Ottawa Heart Institute, is calling on doctors to stop treating heart, brain, and mental health conditions in isolation. Published in the CMAJ, the guideline brings together evidence from cardiology, neurology, and mental health to offer 10 practical recommendations for clinicians and patients. This marks a major shift toward whole-person care for chronic disease.

     A new Canadian guideline is calling for a whole-body approach to chronic disease

    If you have heart disease, your doctor should probably be asking about your memory. And if you’ve had a stroke, your cholesterol needs attention too. That’s the message behind a landmark new guideline published this week in the Canadian Medical Association Journal. It’s the first of its kind to treat the heart, brain, and mental health as the interconnected system they truly are.

    Led by researchers at the University of Ottawa Heart Institute, the brain–heart guideline is the first to combine evidence from cardiology, neurology, and mental health to guide care for people living with both heart and brain conditions. It’s a shift that has been a long time coming.

    Dr. Jodi Edwards, director of the Brain and Heart Nexus Research Program at the Ottawa Heart Institute and lead author of the guideline, says the work was driven by a growing recognition of the critical connections between heart and brain disease. Particularly as a source of multiple chronic conditions in aging populations.

    And the science backs her up. Heart and brain conditions frequently co-occur, sharing overlapping risk factors, underlying biological processes, and even genetic connections. Having one raises your odds of developing the other. 

    A person with atrial fibrillation faces elevated risk of cognitive decline. Someone who has survived a stroke is more vulnerable to a future heart attack. Depression and coronary artery disease often travel together. 

    Yet for years, specialists have been treating each of these conditions in isolation, a siloed approach that the new guideline argues is no longer good enough.

    The guideline puts forward 10 concrete recommendations for doctors and patients alike. Among the most actionable:

    Notably, the guideline embedded patient perspectives throughout its development, and every recommendation includes sex- and gender-based considerations. It’s an acknowledgment that these conditions don’t present or progress the same way in everyone, and that women in particular have historically been underserved by research in this space.

    The takeaway for patients is straightforward: don’t accept fragmented care. If you’re managing a heart condition, ask your doctor whether your brain health is being monitored. 

    If you’ve had a neurological event, make sure your cardiovascular risk factors are on someone’s radar. The goal is to screen and treat the whole person, not just individual diseases one at a time.

    Your body already knows your heart and brain are connected. Now, medicine is catching up.

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