Related Episodes for Polyphenol-Rich Diets and Brain Aging

“A national survey analysis estimated 2.6% severe deficiency, 22% moderate deficiency, and 40.9% insufficiency among US adults, although prevalence changes with the threshold used. These categories should remain distinct because insufficiency is not the same as clinical deficiency.”

“The SCN, in turn, coordinates the body's peripheral clocks, such as those found in the liver, pancreas, muscles, and fatty tissue, driving rhythms of rest and activity that determine eating-fasting cycles.”

“Peak plasma flavan-3-ol metabolites after the banana smoothie were 84 percent lower than after the capsule, while the low-PPO berry smoothie produced levels similar to the capsule. PPO is released when plant tissue is cut, bruised, or blended and can react with selected polyphenols before they reach circulation.”

“Longer endurance aerobic exercise seems to be most effective at producing higher levels of FGF21, coinciding with anecdotes you might have heard from runners who have successfully used exercise in this sort of way. Relevant publications Flippo, Kyle H., et al.”

“A separate study of 17 recently abstinent heavy cannabis users found poorer sleep efficiency, longer sleep onset, and less slow-wave sleep than in 14 drug-free controls, consistent with withdrawal-related sleep disruption.”

“A separate cohort of 12,388 adults associated vitamin D exposure with 40 percent lower dementia incidence, and a 12-month randomized trial of 183 older adults with mild cognitive impairment found improvements on several cognitive tests with 800 IU per day.”

“But sometimes, the compounds can work against each other, limiting their absorption and diminishing their healthful effects. In this Aliquot, I address concerns about possible conflicts between matrix components in bananas and dairy products that might diminish the healthful effects of polyphenols.”

“In this Aliquot, sleep scientist Dr. Michael Grandner explains why sleep apnea is so often missed, how these nightly breathing disturbances affect the body, and which treatments can meaningfully improve sleep and long-term health.”

“It has attracted interest for its potential to activate mitophagy, the process cells use to clear out damaged mitochondria. In this Aliquot, I explain why mitochondrial cleanup matters for aging, why urolithin A production varies, and what early human studies suggest about its potential benefits.”

“The decline of deep sleep begins early in life, nearly disappears by age 80, increasing the risk for Alzheimer's disease. These Aliquot segments feature Dr. Charles Raison, a professor of psychiatry, and Dr. Matthew Walker, a professor of neuroscience and psychology.”