We’ve long known that healthy eating is linked to better brain health.

Now there’s even more evidence, just published in the journal JAMA Network Open, that an anti-inflammatory diet may play an important role in reducing dementia risk — even among people already at higher biological risk for the condition.

What did this study find? What exactly is an anti-inflammatory diet? And what practical steps can people take to keep their brains healthy as they age?

To help with these questions, I spoke with CNN wellness expert Dr. Leana Wen. Wen is an emergency physician and clinical associate professor at George Washington University. She previously was Baltimore’s health commissioner.

CNN: What did this new study find about anti-inflammatory diets and dementia risk?