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What Makes Us Fat? The Genetics of Appetite | Giles Yeo
Manage episode 491074969 series 3668028
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š¬ Dr. Giles Yeo is a geneticist and obesity researcher at the University of Cambridge. He specialises in how brain and genetic factors influence appetite and body weight regulation. Heās known for communicating complex science around obesity, appetite, and nutrition in an accessible way through media, books, and public talks.
ā”ļøIn this episode, Giles and I dig into how our genes - especially those in the brainās appetite and reward centres - shape our hunger signals, fat storage, and body fat āsetāpointsā. We explain why diets often fail and how to reset our appetite.
š§ Stay tuned to find out:
ā”ļø Just how strongly our genes are to blame for appetite and body weight
ā”ļø The specific brain region that regulates hunger and energy balance
ā”ļø Whether weight loss injections are really the answer
ā”ļø Why obesity is biological - not a moral failing
ā”ļø The 3 numbers to remember for weight loss
š Chapters
(00:47) Welcome back
(01:01) The genetic reason for obesity
(02:49) The role of the brain in weight gain
(05:15) Reward, hunger and fullness
(08:14) How fat cells influence how hungry you are
(10:09) The hypothalamus map
(13:19) What to do when your mealās not enough
(16:16) Why hormones donāt limit your appetite
(18:21) The paradox of leptin resistance
(20:55) Insulin resistance and weight gain
(22:30) Defining high quality weight loss
(24:56) The yo-yo effect
(26:13) Why weight loss drugs arenāt enough
(30:17) The wider benefits of GLP-1 agonist weight loss drugs
(34:19) Gene mutation and obesity
(37:43) Gut hormones and the role they play
(41:06) The effect of early years education
(44:30) Three numbers to remember
(46:23) Your DNA isnāt your destiny
š± Connect with me:
Instagram: https://www.instagram.com/drkaranrajan
YouTube: https://www.youtube.com/@DrKaran
TikTok: https://www.tiktok.com/@dr.karanr
š± Connect with Dr Giles Yeo:
Instagram: https://www.instagram.com/gilesyeo
š Grab Gilesā book here: https://amzn.eu/d/hoAnVLr
š„ Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe
š„ For more useful science for your everyday life, grab my best selling book āThis Book May Save Your Lifeā: https://geni.us/DrKaranBook
šļø An OG Podcasts production.
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