Related Episodes for Peakspan: A Proposed Way to Track Function Across Aging

“However, the term "fasting" can comprise a variety of subtypes. Intermittent fasting, a term lacking specificity, usually refers to interventions such as alternate-day fasting, fasting one day per week, or a five:two eating pattern (fasting for two days per week).”

“The most compelling human signal appears when the brain is under acute strain. In a randomized crossover study, a single dose of 0.35 grams per kilogram during 21 hours of sleep deprivation changed cerebral energy metabolites and preserved selected measures of cognitive performance.”

“00:20:21 - Some of the key blood-based biomarkers that are useful for tracking and projecting future cognitive health, including: homocysteine (<7μml/L preferred), which Dr. Bredesen indicates may be a mediator of cerebral atrophy, and also fasting insulin (<5% preferred), hemoglobin A1c, fasting glucose, vitamin D, and a number of other hormones relevant for trophic support.”

“Her practical message is to reduce the frequency and size of large glucose exposures. Foods with intact fiber, protein, and minimally processed carbohydrates digest more slowly than refined added sugar, while regular exercise gives skeletal muscle a large destination for circulating glucose.”

“Sure, those dates on the calendar pass at the same rate for everybody, but some people appear to age slower (or faster) than others – with vastly different age-related physical changes and disease risks.”

“In a two-year trial of 237 postmenopausal women, approximately 9 to 10 grams per day combined with resistance training and walking did not add a bone-density benefit, so its role is better framed around muscle and physical function.”

“In 27 men with metabolic syndrome, four four-minute intervals near 90 percent of peak heart rate improved VO2 max more than work-matched moderate exercise. A two-year randomized trial used a broader progressive program in healthy, sedentary adults around age 53.”

“Controlled human studies support acute brain-related responses to high-intensity exercise. Six short all-out cycling intervals improved selected learning and executive measures while increasing circulating BDNF, IGF-1, and VEGF; lactate tracked several of these changes.”

“Studies of centenarians suggest that lower levels of inflammation are associated with longevity. Different types of fiber provide fuel to diverse species of bacteria in the gut, which then synthesize byproducts that regulate the inflammatory process.”

“Dr. Patrick recommends vigorous intervals when moderate training does not improve an individual’s VO2 max and presents repeated one-minute efforts and the Norwegian 4-by-4 as practical options.”