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And this was a study to go to Cedars-Sinai, Los Angeles. This is a teaching hospital, huge complex. And scientists at the facility, they found out the way to develop young immune cells from human stem cells that reverse the ages, the signs of aging and Alzheimer's, disease in the brains of lab mice. And this was published in Advanced Science. The cells that are known as mononuclear phagocytes, and they're found circulating through the body. And they're functions of the clear substances that are thought to be harmful. And as an organism ages, the function of these cells diminishes. Researchers have been able to produce these useful versions by using human-induced pluripotent stem cells. These are adult cells reprogrammed to an earlier embryonic state. So they can be then assigned a specific function. These then produce young mononuclear phagocytes. And when infused into aging mice and implemented in mouse models of Alzheimer's, scientists discovered remarkable improvements in brain function and structure. Even microglia were found to be healthy. Microglia, they're specialized brain cells that detect and clear damaged tissue. This is repeater station. And the exact way this mechanism works, it's not clear. It's not clear. It may be because the young mononuclear phagocytes, they didn't appear to cross into the brain. And so it's interesting research. And we're talking here tonight about Alzheimer's and dementia. And there's a big, big push now to come up with an effective treatment. I don't even have a chair for it. You can see where they're going with this as time goes by.