Social isolation is a recognized dementia risk factor — but connection, purpose, and lifelong learning may do more than reduce risk. Here's what the research shows and what it means practically.

Chronic stress doesn't just affect mood — it disrupts sleep, raises blood pressure, worsens metabolic health, and may accelerate cognitive decline. Here's what the research shows and what you can do about it.

Sleep is not passive downtime — it's when your brain consolidates memories, clears Alzheimer's-associated proteins, and performs the overnight maintenance that determines how well you age cognitively.

Untreated hearing loss is the largest modifiable dementia risk factor.

Is your brain starving? Even with "normal" blood sugar, insulin resistance can create a functional energy gap in your brain.