Atif Hashmi, MD

@atifhashmimd.bsky.social

Board-certified neurologist with fellowship training in neuroimaging. Founder of OptimizeCognition, a practice focused on brain health optimization. Writing on the evidence and practice of preventing cognitive decline at CognitiveResilienceMD.com

"Exercise prevents dementia." Almost everyone believes it. The early evidence that built that belief is real, consistent, and measured across decades. It also cannot prove the thing everyone took from it. A neurologist's look at where the idea came from.

New research shows both too little sleep and unusually long sleep are linked to higher dementia risk. Sweet spot: ~7 hours. Short sleep can disrupt the brain’s nightly cleanup processes. Long sleep is often a marker of early brain changes. How many hours do you usually sleep on most nights?

There’s now a serious body of research on protecting the brain from decline, and most of it never reaches the people it’s for. I cover what the studies show and what they don’t, starting with exercise and dementia risk. One study at a time. Follow along, and subscribe at CognitiveResilienceMD.com

Cognitive Resilience with Atif Hashmi, MD

A neurologist on the evidence behind brain health and modifiable risk for cognitive decline.

cognitiveresiliencemd.com