Dr. John Speakman is a biologist whose research focuses on energy balance, energy expenditure, genetic and environmental drivers of obesity and the energetic contribution to aging. They discuss: the history of the obesity epidemic in the US vs. China; changes in patterns of physical activity, diet, and energy expenditure in humans over time; how saturated fats vs. PUFAs affect basal metabolism; the relative contributions of fats, carbs, and protein to fat & weight gain; and more.See this content to learn more about diet & metabolism: https://substack.com/search/diet%20metabolism?focusedPublicationId=513528&searching=focused_postsSupport the showSign up for the free weekly Mind & Matter newsletter:[https://mindandmatter.substack.com/?sort=top]Learn how you can further support the podcast: [https://mindandmatter.substack.com/p/how-to-support-mind-and-matter]Become a Premium Subscriber to access full content library, including full premium episodes:[https://mindandmatter.substack.com/subscribe?utm_source=menu&simple=true&next=https%3A%2F%2Fmindandmatter.substack.com%2F]Try the Lumen device to optimize your metabolism for weight loss or athletic performance. Use code MIND for $50 off:[https://www.lumen.me/shop?fid=8731&utm_source=influencer&utm_medium=influencer&discount=MIND]