BDNF is one of the 3 endogenous enzymes (natural growth factors) INSIDE the brain that research shows bryostatin brings back to normal levels. 40:50 mark. 45 seconds that could have saved hundreds of billions of dollars into failed alzheimer's research. Those 3 natural enzymes inside the brain, when normalized, no longer allow for plaque formation. I'll ask again, what does the brain know that researchers don't. Alkon gives you the answer.