Many people worry about memory loss and cognitive decline as they age. In this episode of Health Matters, host Courtney Allison speaks with Dr. Matthew Fink, neurologist-in-chief at NewYork-Presbyterian and Weill Cornell Medicine, about how lifestyle choices—especially diet—can help protect the brain.

Dr. Fink explains the MIND diet, a combination of the Mediterranean and DASH diets, which emphasizes whole foods like leafy greens, berries, fish, nuts, and olive oil while limiting salt, sugar, and ultra-processed foods. He breaks down how key nutrients such as B vitamins and antioxidants support brain metabolism, reduce inflammation, and may slow the aging process.

The conversation also highlights the brain’s high energy demands and why proper nutrition is essential for cognitive function. Dr. Fink shares research showing that healthy lifestyle interventions can significantly lower the risk of dementia and discusses the broader benefits of the MIND diet for heart health and stroke prevention.

Finally, Dr. Fink outlines additional habits that support brain health, including regular physical activity, quality sleep, and social connection, emphasizing that even small, gradual changes can lead to meaningful long-term benefits.

Chapters

00:00 – Why Brain Health Is in Your Control

03:00 – What Is the MIND Diet?

06:00 – Brain-Boosting Nutrients and Foods to Avoid

10:30 – Beyond Diet: Exercise, Sleep, and Daily Habits

Key Topics Covered

MIND diet overview

Mediterranean diet and DASH diet

Brain metabolism and energy use

B vitamins and brain health

Antioxidants and inflammation

Foods that support cognitive function

Foods to limit (salt, sugar, processed foods)

Dementia and Alzheimer’s prevention

Stroke and heart disease connection

Exercise and brain function

Sleep and cognitive health

Lifestyle changes for healthy aging

Takeaway Message

You have more control over your brain health than you might think. By focusing on whole, nutrient-rich foods, limiting processed options, staying active, and getting enough sleep, you can significantly reduce your risk of cognitive decline and support a healthier brain as you age.

Doctor Bios

Matthew E. Fink, MD is the Louis and Gertrude Feil Professor and chair of the Department of Neurology at Weill Cornell Medicine, and neurologist-in-chief at NewYork Presbyterian/Weill Cornell Medical Center.  In addition, he is chief of the Division of Stroke and Critical Care Neurology at NewYork-Presbyterian/Weill Cornell Medical Center, and vice chair of the medical board. Dr. Fink attended college at the University of Pennsylvania, medical school at the University of Pittsburgh, and served as resident and chief resident in internal medicine at Boston City Hospital. He came to New York and trained in neurology at the Neurological Institute of NewYork-Presbyterian/Columbia University Irving Medical Center, and served as chief resident under Dr. Lewis P. Rowland. Subsequently, he joined the faculty of Columbia University and became the founding director of the Neurology-Neurosurgery Intensive Care Unit at NewYork-Presbyterian/Columbia and was appointed associate professor of clinical neurology and neurosurgery while at Columbia. Dr. Fink was a founding member and chair of the critical care section of the American Academy of Neurology, and the research section for neurocritical care of the World Federation of Neurology. He is board-certified in internal medicine, neurology, critical care medicine, vascular neurology, and neurocritical care.  He has been elected as a Fellow of the American Neurological Association, the American Academy of Neurology, and the Stroke Council of the American Heart Association. Throughout his career, Dr. Fink has been involved in the education and training of students, residents and fellows in the field of stroke and critical care neurology, as well as an active participant in clinical research within this field. He is a leader in this new specialty, has lectured widely, and has published many research and clinical articles in the field of stroke and critical care. In addition, he currently serves as editor of the monthly publication, NEUROLOGY ALERT, and is a past-president of the New York State Neurological Society.