Functional medicine is a more effective model for treating complex conditions like Alzheimer's than studying single interventions in isolation.

“I ran into this at Cleveland Clinic, and we were trying to study Alzheimer's. And we had a guy who really wanted to look at the black box of functional medicine. People come in, you do personalized care. Out the other side, what happens? And the head of science there was like, no, no, we can't do that. We can only study one thing at a time. Vitamin D, we'll do that study. Then we'll do fish oil study. Then we'll do diet study. Then we'll do exercise study. Then we'll do whatever study. I'm like, that's not how the body works.”