DR. SHERRI TENPENNY

Doctor, Speaker, Educator, Consultant

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DR. SHERRI TENPENNY

Doctor, Speaker, Educator, Consultant

The Tenpenny Files with Michael Nehls

06-03-2026
If you prefer to watch the interview, click below:
Alzheimer’s disease is no longer a problem affecting a small percentage of elderly people. Dementia is becoming more common. Brain fog has become a normal complaint. Attention disorders continue to rise. Fertility rates are falling. Neurological dysfunction is showing up in places many researchers never expected.

 

Most people treat those as separate problems.

 

Dr. Michael Nehls spent decades researching Alzheimer’s disease and eventually came to a different conclusion.

 

The deeper he investigated memory loss, cognitive decline, and the brain’s ability to repair itself, the more often he encountered the same pattern. The same substance kept appearing in studies involving memory formation, neurogenesis, stem cell maintenance, fertility, sleep quality, cognitive resilience, and healthy aging.

 

That substance was lithium.

 

Most people know lithium as a psychiatric drug. Dr. Nehls became convinced that explanation was nowhere near the full story.

 

His new book, The Conspiracy Against Lithium, explores how a substance connected to so many biological functions became known almost exclusively for one medical use while research continued to point in much broader directions. During this conversation, he discusses studies linking naturally occurring lithium exposure to lower rates of dementia, suicide, mental illness, and chronic disease while explaining why those findings became impossible for him to ignore.

 

Dr. Nehls explains why the hippocampus sits at the center of memory and learning, why it is among the first structures affected by Alzheimer’s disease, and why lithium repeatedly appears in biological pathways involving neurogenesis, stem cell maintenance, and cognitive resilience. The discussion expands into fertility, ADHD, autism, chronic inflammation, sleep quality, and the growing body of research that ultimately led him to write this book.

 

We touched on this subject during Dr. Nehls’ last appearance. The questions it raised were too important to leave there.

 

Every family fears Alzheimer’s. Every family fears dementia. Most people assume the world’s leading researchers have already identified the most important pieces of the puzzle.

 

Dr. Nehls believes one of those pieces has been overlooked for decades.

 

The implications of that conclusion extend far beyond lithium itself and reach into some of the biggest questions surrounding memory loss, cognitive decline, fertility, healthy aging, and long-term brain health.

 

That’s why we brought him back.
 
Meet the Guest
Dr. Michael Nehls, MD, PhD, is a physician, molecular geneticist, and internationally recognized Alzheimer’s researcher whose work has focused on understanding why the brain loses its ability to form memories, maintain cognitive function, and resist degeneration with age.

 

His scientific discoveries have helped identify the genetic causes of dozens of hereditary diseases and have been published in collaboration with Nobel Prize-winning researchers. His work on immunity development earned recognition from the American Association of Immunologists as a “Pillar of Immunology,” and his pioneering findings on Alzheimer’s disease development, prevention, and treatment earned him the Hanse Prize for Molecular Psychiatry.

 

Dr. Nehls is the bestselling author of several internationally translated books, including The Indoctrinated Brain and The Conspiracy Against Lithium: The Suppressed Essential Nutrient That Benefits Our Mental Health.

 

Website:
Book:  https://amzn.to/4dRcDsj
 

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