I like to stay focused on information you can use today to make your tomorrows better. But every once in a while, there's a piece of research that offers such an exciting window on tomorrow's promise for a healthier future that I have to share it.

Researchers at Cleveland's Case Western Reserve University have found a way to restore fading levels of an essential bodily coenzyme called NAD+ (nicotinamide adenine dinucleotide) that helps convert food into cellular energy.

When they do that for lab mice that are engineered to carry genetic mutations that cause Alzheimer's disease, not only do the mice not develop the condition, but those that have the disease see cognitive powers regained.

While no NAD+ study has shown improvement in the cognitive functioning of humans, this study opens the door to that next step.

When you combine that with the Cleveland Clinic's 20-year study of more than 20,000 people — which was designed to identify how to spot Alzheimer's before it causes symptoms — it looks like one day we may be able to eliminate the risk of Alzheimer's for many.

In the meantime, therapeutic plasma exchange has been shown to reverse cognitive dysfunction in early Alzheimer's.

And there are 30-plus ways to help prevent brain aging outlined in my book "The Great Age Reboot."