All over the world people report sightings of big, hairy, human-like beasts, so could Bigfoot really be out there... somewhere? We ask Dr. Jeff Meldrum, Prof. Bryan Sykes, Prof. Todd Disotell, and the Round Rock, Texas, Department of Parks and Recreation.CORRECTION: In a previous version of this podcast we said Dr Meldrum works at the University of Idaho. He actually works at Idaho State University. We've updated this episode with his correct title.Our Sponsors: Cole Haan | WP Engine | Sundance NowListen to Gimlet's newest show, Uncivil wherever you get your podcastsApple Podcasts | Overcast | Stitcher | PocketcastsCredits: This episode has been produced by our senior producer, Kaitlyn Sawrey, as well as Wendy Zukerman, Rose Reid, Heather Rogers and Shruti Ravindran. Production assistance from Rose Rimler. Edited by Blythe Terrell and Annie-Rose Strasser. Fact checking by Michelle Harris. Sound design by Martin Peralta. Music written by Bobby Lord. And a big thank you to Dr Michael J Hickerson and Professor James L. Patton for his 7 PAGE document describing the last large mammals discovered by western scientists in North America, suffice to say, Bigfoot wasn’t on the list.Selected Reading:Paper on Bigfoot reports in North AmericaBryan’s paper on Bigfoot hairsA review of the human family treeJeff Meldrum’s bookCheck out the full transcript here: http://bit.ly/2LyEOQn Learn more about your ad choices. Visit podcastchoices.com/adchoices

We need to ditch fossil fuels. Can America go 100% renewable by 2050? Does the technology already exist? We speak to Prof. Mark Delucchi, Prof. Christopher Clack, and Prof. David Connolly.UPDATE: Since this episode was published, Tesla have unveiled a prototype of a electric semi truck.Check out the full transcript here: http://bit.ly/38ku2a4Our Sponsors: Tushy | Wordpress.com | TuneInCredits:This episode has been produced by Wendy Zukerman, Heather Rogers and Shruti Ravindran. Production help from Rose Rimler. Our senior producer is Kaitlyn Sawrey. We’re edited this week by Blythe Terrell and Annie-Rose Strasser, with extra help from Rachel Ward. Fact checking by Michelle Harris. Sound design by Martin Peralta. Music written by Bobby Lord. For this episode we also spoke to Professor Vijay Modi, Professor Mark Jacobson, Dr Gorm Bruun Andresen, Professor Willett Kempton, Dr Dylan McConnell, and Dr Jane CS Long. And an extra thanks to the Zukerman family.Selected reading: Mark Jacobson and Mark Delucchi paper showing that the US could be run on 100 percent renewable energy.Christopher Clack and his team’s paper criticising Mark’s workSurvey published this year of more than 100 energy experts on the future of renewables.National Renewable Energy Lab’s look at Renewable Electricity Detailed report on California’s energy future Learn more about your ad choices. Visit podcastchoices.com/adchoices

Last week we explored the science behind vaccine safety. This week we try to understand where these fears came from, and why they persist. We speak to three historians: Prof. Nadja Durbach, Prof. Elena Conis, and Prof. Robert Johnston. And a concerned mom named Noelle.Check out our full transcript here: http://bit.ly/355DlZzOur Sponsors: Cotton Inc + Madewell | Spotify | Sundance Now's Riviera | Wordpress.comCredits:This episode has been produced by Heather Rogers, Wendy Zukerman, and Shruti Ravindran. Production help from Rose Rimler. Our senior producer is Kaitlyn Sawrey. We’re edited this week by Blythe Terrell with editorial assistance from Alex Blumberg, Annie-Rose Strasser and Lynn Levy. Fact checking by Michelle Harris, with help from Rose Rimler. Sound design by Martin Peralta. Music written by Bobby Lord. For this episode we also spoke with Russ Bruesewitz, Prof. Sharon Kaufmann, Prof. Alison Buttenheim, Barbara Loe Fisher, Sally Mendelsohn, Prof. Mary Holland, Prof. Paul Jackson, Prof. Michael Willrich, Julie Livingston and Kari Christianson. Thanks to Gimlet producer Luke Malone, the whole Zukerman clan, Joseph Lavelle Wilson, and Leo Rogers.Selected references:Dr. Robert Mendelsohn’s book, Confessions of a Medical Heretic, Nadja Durbach’s book, Bodily Matters, Vaccine hesitancy paper Paul Offit’s book, Deadly Choices Learn more about your ad choices. Visit podcastchoices.com/adchoices

Autism, seizures, and overloaded immune systems. Could these really be side effects of vaccines? This week, we dive into the science to find out how safe vaccines really are. We also talk to public health researchers Prof. Dan Salmon and Prof. Amy Kalkbrenner and neurologist Prof. Ingrid Scheffer.Check out our full transcript: http://bit.ly/2PrqtX3Our Sponsors:Cole Haan | Google Cloud, Maker of GSuite | Ziprecruiter | WPEngineCredits:This episode has been produced by Heather Rogers, Wendy Zukerman, and Shruti Ravindran. Production help from Rose Rimler. Our senior producer is Kaitlyn Sawrey. We’re edited this week by Blythe Terrell and Annie-Rose Strasser. Fact checking by Michelle Harris, with help from Rose Rimler. Sound design by Martin Peralta. Music written by Bobby Lord. For this episode we also spoke with Dr. Saad Omer, Dr. Neal Halsey, Dr. Paul Offit, Dr. Frank DeStefano, and Prof. Alison Buttenheim. And an extra thanks to Bonnie Stanway,Ivona Stamatoska, Reese and Walter Ludwig, the Zukerman Family, Joseph Lavelle Wilson and - of course! - Leo Rogers.Selected References:The National Academies (aka Institute of Medicine) report on vaccine safety A report on the genetic underpinnings of epilepsyThis study looked for neurologic disorders after the MMR shot in half a million kids This one looked at all children born in Denmark between 1991 and 1998 Learn more about your ad choices. Visit podcastchoices.com/adchoices

Juice cleanses, fancy foods, sweat, charcoal, and colonics-- is there a scientifically proven way to ‘clean out’ your system? This week, we dig in deep to the science of detox and turn ourselves into guinea pigs for a juicing experiment. We talk to a passionate proctologist named Prof. Graham Newstead, as well as nutrition researcher Prof. Stella Volpe and toxicologist Dr. Susanne Ramm.Check out the full transcript here: http://bit.ly/2LEsSwr Our Sponsors: Cole Haan | Google Cloud, Maker of GSuite | Cotton Inc + MadewellCredits: This episode has been produced by Shruti Ravindran, Wendy Zukerman, and Heather Rogers. Our senior producer is Kaitlyn Sawrey. Edited by Annie-Rose Strasser and Blythe Terrell. Fact checking by Michelle Harris, with help from Rose Rimler. Sound design by Martin Peralta. Music written by Bobby Lord. Extra thanks to Lynn Levy, the Zukerman Family, Joseph Lavelle Wilson, Torey Armul, Dr. Naveed Sattar, and Dr. David Juurlink.Selected ReferencesOn the inability of activated charcoal to absorb wind, aka the ‘poo in a blender’ study Review paper on the dangers of colonics Why liquids don't make you feel very full An investigation of capsaicin, aka the spice in spicy food, for weight loss  Learn more about your ad choices. Visit podcastchoices.com/adchoices

Science Vs is back in your ears next week! This season we're going to dissect the science behind detox diets, the safety of vaccines and whether America can run on 100% renewable energy. We also figure out whether vitamins and supplements are a waste of your money, why the bees are dying and where the heck the Male Pill is at?!Go to sciencevs.show/fall to check out Wendy's favourite episodes of other Gimlet shows coming back this Fall. Fact you next week! Learn more about your ad choices. Visit podcastchoices.com/adchoices

Low calorie, no calorie and so sweet. Artificial sweeteners just seem too good to be true. Is there a catch? We dig into two big questions: Do artificial sweeteners cause cancer, and are they making us fat? We talk to Prof. John Glendinning, Prof. Susie Swithers, Dr. Kieron Rooney, and PhD student Jotham Suez about the latest research. Plus we do a fun experiment with PJ Vogt and Alex Goldman from Reply All! Also, please sign up for our brand spanking new newsletter! We’ll share science that’s been blowing our minds, plus great content like the most amazing calculation from an academic of how much bigger 323 African Elephants are than nuclear waste. Head to: https://gimletmedia.com/newsletter/ Our Sponsors:Postmates - New customers get a $100 credit by downloading the app and entering the promo code SCIENCEWordpress - go to wordpress.com/science to get 15% off a new websiteHello Fresh - For $30 off your first week of meals go to hellofresh.com and enter the promo code SCIENCEVS30 Credits:This episode has been produced by Ben Kuebrich, Heather Rogers, Shruti Ravindran and Wendy Zukerman.Kaitlyn Sawrey is our senior producer. We’re edited by Annie-Rose Strasser. Production assistance by Stevie Lane. Fact checking by Michelle Harris. Original music and mixing by Bobby Lord. Extra thanks to Dr. Mary Pat Gallagher, Peter Bresnan, Euromonitor International and ubiome.  Selected References:Prof. Susie Swithers’s study on artificial sweeteners and feeding behavior in ratsA 2015 systematic review of the relationship between artificial sweetener consumption and cancer in humansJotham Suez’s study on artificial sweeteners and the gut microbiome Learn more about your ad choices. Visit podcastchoices.com/adchoices

Fukushima. Chernobyl. Three Mile Island. There’s been some big nuclear accidents over the past few decades, but how dangerous is nuclear power really? We take you inside the core of America’s biggest nuclear power plant and trace what went wrong at Fukushima to try to figure out: when will the next meltdown happen? And what our chances are of getting cancer from it? This week we talk to Dr. Spencer Wheatley, Dr. Jonathan Samet, and Jack Cadogan, an executive at the Palo Verde Nuclear Generating Station.UPDATE! We’ve made a couple of small changes to this episode, thank you to all the listeners who picked up on them. 1. We called the energy that comes from nuclear power a chemical reaction… it’s not. It’s a nuclear reaction. Chemical reactions involve the electrons in an atom. Nuclear reactions involve the nucleus. 2. We said that the Joker became The Joker After falling into a vat of radioactive waste. This is disputed. It seems it was a vat chemicals.. But what those chemicals were , that’s unclear. 3. A clarification: We said that the waste that nuclear power produces in the US… 2200 metric tons per year… was like 323 male African Elephants. That was a weight comparison. They weigh roughly the same… It wasn’t a three dimensional size comparison. Nuclear waste is much denser than an elephant, and so it takes up much less room. And if you want to read the most amazing calculation from an academic of how much bigger 323 African Elephants are in 3D space you’ve got to sign up to our brand spanking new newsletter! To do that head to https://gimletmedia.com/newsletter/ And FINALLY! We got a lot of feedback from that episode that listeners really wanted to hear how nuclear power compares to other energy sources: like coal, solar and wind! Now we decided that to do a fair comparison that really needs it’s own episode - it wasn’t as simple as just throwing out some numbers. So we’re working on that episode for next season.Our Sponsors:Cloudflare - To learn more visit cloudflare.com/sciencevsCredits:This episode has been produced by Heather Rogers, Ben Kuebrich, Shruti Ravindran and Wendy Zukerman.Kaitlyn Sawrey is our senior producer. We’re edited by Annie-Rose Strasser. Fact checking by Ben Kuebrich and Heather Rogers. Original music and mixing by Bobby Lord. Extra thanks to Leo Rogers, Joseph Lavelle Wilson as well as Prof. Steven Biegalski, Prof. Mark Jacobson, Jussi Heinonen, and Dr. Eric Grant.Selected References:Radiation Basics Primer from the U.S. Nuclear Regulatory CommissionDr. Spencer Wheatley’s paper ‘Reassessing the safety of nuclear power’National Research Council Report on Health Risks from Low Levels of Ionizing Radiation Learn more about your ad choices. Visit podcastchoices.com/adchoices

Explore the science behind meditation - can it really reduce stress and improve mental health? Hear from Silicon Valley CEOs, Tibetan monks, and experts on the benefits and controversies of meditation. Discover the history of meditation, its impact on brain structures, and its potential for mental health. Dive into the correlation between meditation and DNA, aging, and chromosomal stability. Delve into the emotional complexities of meditation research and the intersection of science and mindfulness.

What is love? With half of first time American marriages ending in divorce by the 20th anniversary, and infidelity being widespread, Science Vs asks: have we been lied to by our love songs?On today’s episode we explore: What happens to the brain when we fall in love? Is the compulsion to stay together biological? And, is monogamy really unnatural? We talk to Dr. Helen Fisher, Professor Larry Young, and Dr. Dieter Lukas about their labors of love.Our Sponsors:Everyday Bravery - Listen to Everyday Bravery, a podcast from Prudential, by going to everydaybravery.comVirgin Atlantic - Listen to their podcast, The Venture, wherever you get your podcastsZiprecruiter - try Ziprecruiter for free by going to ziprecruiter.com/sciencevsCredits:This episode has been produced by Wendy Zukerman, Heather Rogers, Ben Kuebrich, Shruti Ravindran and Rose Reid. Kaitlyn Sawrey is our senior producer. We’re edited by Annie Rose Strasser. Extra editorial help from Alex Blumberg. Production assistance from Stevie Lane. Fact checking by Ben Kuebrich. Music production and original music written by Bobby Lord. Special thanks to Joseph Lavelle Wilson, Austin Mitchell and to Professor Karen L Kramer, Professor Garth Fletcher, Dr. Alexander G. Ophir, Professor David Barash, Richard Bethleham .Check out Gail and Rose Reid's podcast Details Please. Selected References:CDC - Data on First Marriages in the United StatesHelen Fisher fMRI Paper on Early-Stage LoveLarry Young Review Paper on the Neurobiology of Pair BondingDieter Lukas’s Paper on the Evolution of Monogamy in MammalsThe monogamy camp - review paper arguing “we evolved to be monogamous” Learn more about your ad choices. Visit podcastchoices.com/adchoices