Related Episodes for Why "second generation" epigenetic clocks are better at detecting biological age | Dr. Morgan Levine

“Longer high-intensity intervals can raise VO2 max efficiently. In a randomized study of 40 healthy, moderately trained men, eight weeks of four four-minute intervals at 90 to 95 percent of maximum heart rate increased VO2 max by 7.2 percent.”

“In 5,107 middle-aged men followed for 46 years, moving from very low fitness into progressively higher categories was associated with roughly two to five additional years of life, and each one-unit increase in VO2 max was associated with 45 more days of longevity.”

“Whereas fasting turns off multiple pathways associated with aging, such as mTOR and IGF-1, eating for optimal fitness activates these important processes. The IGF-1 pathway, in particular, plays key roles in growth and is strongly associated with cancer.”

“In a crossover study of 15 healthy adults, a single 0.35-gram-per-kilogram dose during acute sleep deprivation changed brain-energy metabolites and improved selected cognitive tasks.”

“The excerpt also reviews controlled muscle studies: omega-3 attenuated loss during immobilization and increased the amino-acid-stimulated muscle-protein-synthesis response under tested conditions. These findings do not generalize to every dose or population.”

“Vitamin D and a home exercise program added benefit on one clock. Separate analyses found lower odds of prefrailty and fewer invasive cancers with the full three-part intervention, making the combined healthy-aging approach a useful area for continued study.”

“In the prospective Framingham Offspring Study, people in the highest red-blood-cell DHA group had approximately 49 percent lower risk of developing Alzheimer's disease than those in the lowest group.”

“The PROT-AGE Study Group recommends at least 1.0 to 1.2 grams of protein per kilogram of body weight per day for most adults over 65 to help maintain lean mass and physical function. Longitudinal evidence connects higher protein intake with better muscle and frailty outcomes.”

“A 2025 network meta-analysis of 217 randomized trials and 15,684 people with knee osteoarthritis found that aerobic exercise was likely the most beneficial exercise category for pain, function, gait, and quality of life.”

“In this clip from Dr. Rhonda Patrick's appearance on Next Question with Katie Couric, she explains how sustained exercise can improve cardiovascular fitness and the heart's ability to fill efficiently during middle age.”