The Brain Rhythm That Changed Everything

The brain rhythm that changed everything.

As a cancer doctor and competitive bodybuilder in my 60s, I’ve always lived by precision. But even with years of training and discipline, I found myself burning out by 2 p.m. most days, relying on caffeine and sheer grit to power through. My sleep suffered, and my creativity faded.

Then I discovered the science of the 90-minute ultradian rhythm — a natural brain cycle that governs focus, energy, and recovery.

The results? Within days, I was thinking clearly, sleeping more deeply, and performing better in the clinic, the gym, and my writing.

This isn’t another productivity hack or app.

It’s biological, free, and works.

I just published the full breakdown — including how I structure my day, why it’s backed by neuroscience, and how you can try it — on Medium:

👉 The 90-Minute Rule: How I Rewired My Focus, Energy, and Sleep by Timing My Day Like a Neuroscientist

Please read The Brain Rhythm That Changed Everything now, and let me know what rhythms keep you grounded.