A new discovery is making neurologists question what they thought they knew about memory loss and cognitive decline.

During a revealing interview, Dr. Dale Bredesen explains what his team discovered after studying the brains of unusually sharp “super-agers” in their 80s, 90s, and even 100s — and why their brains appeared to maintain something most people gradually lose with age.

But what caught everyone’s attention was the discovery of a natural compound found in an ordinary Mediterranean herb.

According to the presentation, this compound may help reactivate the brain’s own “cleaning system” — the network responsible for clearing away the buildup linked to cognitive decline.

And there’s a surprising reason why simply eating more rosemary may not be enough.

So what exactly did researchers discover inside the brains of these “super-agers”? What does this little-known compound have to do with the brain’s natural cleaning system? And why did researchers develop a completely different way to deliver it than an ordinary rosemary supplement?