Dr. Debra Lieberman is an evolutionary psychologist, professor, and researcher. Why don’t we feel sexual attraction toward our siblings or close family? Evolution seems to have hard-wired the brain to prevent inbreeding, a pattern shared with many other animals. So how does this mechanism work, and what are the moral or ethical arguments surrounding incest? Expect to learn why evolution has designed you to not want to have sex with your sister, how animals actually detect who their relatives are, what the high level explanation is for why humans don’t want to have sex with their kin, the moral argument if it is okay for two adult siblings had consensual sex, how big the actual genetic risk is for first cousins, what crying and tears actually communicate from an evolutionary perspective and much more… Follow her work here: https://deblieberman.com/ - 0:00 Why Don’t We Want to Have Sex With Our Siblings? 7:57 What Cues Trigger Our Incest Avoidance Mechanism? 19:04 Is Incest Disgust a Moral Pressure? 27:19 How Only Children Make Sense of Incest 31:11 Why Is Incest P**n So Popular? 37:19 Why Do We Cry? 52:53 What Happens When No One is Watching 58:07 Why We Use Tears to Convey Emotions 01:06:30 Where to Find Debra - New pricing since recording: Function is now just $365, plus get $25 off at https://functionhealth.com/modernwisdom Get 35% off your first subscription on the best supplements from Momentous at https://livemomentous.com/modernwisdom Get a free bottle of D3K2, an AG1 Welcome Kit, and more when you first subscribe at https://ag1.info/modernwisdom Get a Free Sample Pack of LMNT’s most popular flavours with your first purchase at https://drinklmnt.com/modernwisdom - Get access to every episode 10 hours before YouTube by subscribing for free on Spotify - https://spoti.fi/2LSimPn or Apple Podcasts - https://apple.co/2MNqIgw Get my free Reading List of 100 life-changing books here - https://chriswillx.com/books/ Try my productivity energy drink Neutonic here - https://neutonic.com/modernwisdom - Get in touch in the comments below or head to... Instagram: https://www.instagram.com/chriswillx Twitter: https://www.twitter.com/chriswillx Email: https://chriswillx.com/contact/