Related Episodes for Insights into development, evolution, and aging | Dr. Morgan Levine

“Perhaps the most clear-cut examples of cryotherapy’s beneficial effects are observed in the brain, where levels of the hormone and neurotransmitter norepinephrine – responsible for vigilance, attention, focus, and positive mood – increase markedly when the body is exposed to extreme cold.”

“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.”

“Healthy, well-nourished adults can usually synthesize enough, and athlete trials have not found consistent improvements in immune measures, aerobic performance, body composition, or intestinal permeability from routine supplementation.”

“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.”

Dan Pardi: Ph.D. candidate studying sleep neurobiology at Stanford and University of Leiden, co-founder of Dan’s Plan online wellness company.

“Moreover, taking mega doses (i.e. 400 IU/day) of alpha tocopherol has the unintended side-effect of actually depleting tissue levels of another important form of vitamin E that plays an anti-inflammatory role, known as gamma tocopherol.”

“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.”

“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.”

“Patients assigned to supervised exercise during neoadjuvant chemoradiation, followed by continued activity before surgery, were more likely to achieve a complete or near-complete pathological response than those receiving usual care.”