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“A wide array of toxicants, including heavy metals, such as cadmium and mercury; bisphenol A; polychlorinated biphenyls; and phthalate compounds, bioaccumulate in the human body. An individual's toxic burden may contribute to their poor metabolic function, inflammation, and cognitive dysfunction.”

“The clip also raises questions about micronutrient status. A systematic review found a slight association between vitamin D status and total testosterone, with substantial heterogeneity, and concluded that both may reflect overall health status.”

“Multicomponent lifestyle programs combining physical activity, weight loss, sodium reduction, limited alcohol, and dietary changes lowered blood pressure more than advice alone, although the PREMIER trial cannot isolate one component’s effect.”

“Early discoveries in aging research revealed that sirtuins, a class of enzymes that control gene expression, modulate lifespan by mimicking the effects of calorie restriction – the chronic reduction of energy intake.”

Dr. Rhonda Patrick answers audience questions on various health, nutrition, and science topics in this Q&A session.

Dr. Rhonda Patrick answers audience questions on various health, nutrition, and science topics in this Q&A session.

“Longitudinal studies showed that people with type 2 diabetes taking metformin lived 15 percent longer than healthy controls not taking the drug. This raises the question as to whether the longevity benefits of metformin may extend to healthy people.”

“Dr. Huberman connects that result with open questions about memory consolidation, trauma therapy, and recovery from sleep loss, while keeping those applications as research directions rather than established replacements for sleep.”

“Stress, pathology, and aging can alter brain energy metabolism. During times of impaired brain energy, the brain may prefer to use ketones as a fuel source. The use of alternate fuel sources allows glucose to be spared for the metabolic pathways that require it.”

Dr. Rhonda Patrick discusses child nutrition, osteoporosis, cholesterol-lowering supplements, her skincare routine, and fasting versus prioritizing protein.