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Cody Gough presents

Curiosity Daily

The award-winning Curiosity Daily podcast from Curiosity.com will help you get smarter about the world around you — every day. In less than 10 minutes, you’ll get a unique mix of research-based life hacks, the latest science and technology news, and more. Discovery's Cody Gough and Ashley Hamer will help you learn about your mind and body, outer space and the depths of the sea, and how history shaped the world into what it is today.

October 22, 2021

Art in Space, Screen Time in Lockdown, Mold vs. Chemicals

Learn about the Space for Art Foundation; how screen time helped kids in lockdown; and mold vs. cleaning product safety. More from NASA astronaut Nicole Stott: Pick up "Back to Earth: What Life in Space Taught Me About Our Home Planet — and Our Mission to Protect It" Website: Follow @Astro_Nicole on Twitter: Space for Art Foundation: "Screen time" can be a social lifesaver for teens in lockdown — as long as it's the right kind by Cameron Duke Anwar, Y. (2021, September 2). Teenagers aren’t as lonely in lockdown if interacting positively online. Berkeley News. Magis‐Weinberg, L., Gys, C. L., Berger, E. L., Domoff, S. E., & Dahl, R. E. (2021). Positive and Negative Online Experiences and Loneliness in Peruvian Adolescents During the COVID‐19 Lockdown. Journal of Research on Adolescence, 31(3), 717–733. Which is worse, mold or cleaning products? by Ashley Hamer (Listener question from Molly) Basic Facts about Mold and Dampness. (2021). ‌Weinhold, B. (2007). A Spreading Concern: Inhalational Health Effects of Mold. Environmental Health Perspectives, 115(6). ‌Cleaning Supplies and Household Chemicals. (2015). Lung.org; ‌Alexander, R. (2018, February 22). How Your Housecleaning Products Can Be Bad for Your Lungs. Healthline; Healthline Media. Dumas, O., Boggs, K. M., Quinot, C., Varraso, R., Zock, J., Henneberger, P. K., Speizer, F. E., Le Moual, N., & Camargo, C. A. (2019). Occupational exposure to disinfectants and asthma incidence in U.S. nurses: A prospective cohort study. American Journal of Industrial Medicine, 63(1), 44–50. ‌Svanes, Ø., Bertelsen, R. J., Lygre, S. H. L., Carsin, A. E., Antó, J. M., Forsberg, B., García-García, J. M., Gullón, J. A., Heinrich, J., Holm, M., Kogevinas, M., Urrutia, I., Leynaert, B., Moratalla, J. M., Le Moual, N., Lytras, T., Norbäck, D., Nowak, D., Olivieri, M., & Pin, I. (2018). Cleaning at Home and at Work in Relation to Lung Function Decline and Airway Obstruction. American Journal of Respiratory and Critical Care Medicine, 197(9), 1157–1163. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 21, 2021

How Space Changed NASA Astronaut Nicole Stott’s Perspective; Plus, Whistled Languages

October 20, 2021

A Historic Friendship, Pumpkin Care, Declaring Sovereignty

October 19, 2021

Animals Shapeshifting to Stay Cool, Albert Einstein’s Brain

October 18, 2021

Your Extra Artery, Emotional Hangovers, LEDs Are Bad for Bugs

Learn why more humans are growing an extra artery; emotional hangovers; and the drawbacks of energy-efficient LED streetlamps. More humans are growing an extra artery, which shows we're still evolving by Cameron Duke Lucas, T., Kumaratilake, J., & Henneberg, M. (2020). Recently increased prevalence of the human median artery of the forearm: A microevolutionary change. Journal of Anatomy, 237(4), 623–631. McRae, M. (2021). More And More Humans Are Growing an Extra Artery, Showing We’re Still Evolving. ScienceAlert. Emotional Hangovers Are Real, And They're Not What You Think by Sam Suarez Waude, A. (2016, February 23). Emotion And Memory: How Do Your Emotions Affect Your Ability To Remember Information And Recall Past Memories? Psychologistworld.com; Psychologist World. ‌Mather, M., & Sutherland, M. (2012). The selective effects of emotional arousal on memory. . Tambini, A., Rimmele, U., Phelps, E. A., & Davachi, L. (2016). Emotional brain states carry over and enhance future memory formation. Nature Neuroscience, 20(2), 271–278. ‌New York University. (2016, December 27). Is there such a thing as an emotional hangover? Researchers find that there is. PsyPost; PsyPost. Energy-efficient LED streetlamps are bad news for insect populations by Cameron Duke Boyes, D. H., Evans, D. M., Fox, R., Parsons, M. S., & Pocock, M. J. O. (2021a). Street lighting has detrimental impacts on local insect populations. Science Advances, 7(35), eabi8322. Portree, D. S. F. (2002, October). Flagstaff’s Battle for Dark Skies. The Griffith Observer. Sharon, W. (2007). STUDYING THE ECOLOGICAL IMPACTS OF LIGHT POLLUTION ON WILDLIFE. StarLight: A Common Heritage. Light Pollution Effects on Wildlife and Ecosystems - International Dark-Sky Association. (2016, September 12). International Dark-Sky Association. Main, D. (2019, February 14). Why insect populations are plummeting—and why it matters. Animals; National Geographic. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 15, 2021

Overfeeding Dogs, Suffrajitsu, and Does Wind Affect Sound?

Learn how to avoid overfeeding your dog; whether wind affects sound; and how Suffrajitsu helped women win the right to vote. Please vote for Curiosity Daily in the 2021 Discover Pods Awards! We're a finalist for Best Technology & Science Podcast. Voting closes today, and it only takes a few seconds. Thank you! More from Rodney Habib and Dr. Karen Shaw Becker: Pick up "The Forever Dog: Surprising New Science to Help Your Canine Companion Live Younger, Healthier, and Longer": Dr. Karen Becker on Facebook: Rodney Habib on Facebook: Follow @drkarenbecker on Instagram: Follow @RODNEYHABIB on Instagram: Follow @drkarenbecker on Twitter: Follow @rodneyhabib on Twitter: Rodney Habib on YouTube: Is sound affected by wind? by Ashley Hamer (Listener question from Oliver in Glen Ellyn, Illinois) Effect of Wind on Sound Transmission. (2018). Sciencing. ‌softdb. (2019, May 14). The Effect of Wind and Temperature Gradients on Sound Waves | Soft dB. Soft DB. More from this author. (2020, April 22). How Does The Speed Of Wind Affect Sound Waves Travelling Through It? Science ABC. ‌Why Is It So Loud Today? Understanding How Weather Affects Traffic Noise Levels in Your Community. (2015). Wisconsin Department of Transportation. British women like Edith Garrud and Emmeline Pankhurst won the right to vote in part by using martial arts by Steffie Drucker women’s suffrage | Definition, History, Causes, Effects, Leaders, & Facts | Britannica. (2021). In Encyclopædia Britannica. ‌Ruz, C. (2015, October 5). “Suffrajitsu”: How the suffragettes fought back using martial arts. BBC News; BBC News. ‌Keegan, H. (2018, February 6). Everything you need to know about the awesome art of Suffrajitsu. Stylist; The Stylist Group. ‌Tao Tao Holmes. (2015, November 3). The Suffragettes Who Learned Martial Arts to Fight for Votes. Atlas Obscura; Atlas Obscura. ‌ Did You Know? Suffragist vs Suffragette (U.S. National Park Service). (2020). Nps.gov. ‌ How Mary Poppins Softened the Image of the Suffragette - JSTOR Daily. (2015, October 28). JSTOR Daily. ‌Stevenson, A. (2018, December 11). Will the new Mary Poppins film acknowledge the suffragettes’ success? The Conversation. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 14, 2021

Protecting Pets from Home Chemicals and How Resilience Works

October 13, 2021

Bacterial Electric Grid, Females Fight Back, Why Tea Leaves Sink

Learn about a bacterial electric grid; traits females have evolved to avoid harassment; and why tea leaves sink. There's a bacterial electric grid beneath our feet by Grant Currin Hidden bacterial hairs power nature’s “electric grid.” (2021, September). EurekAlert! Gu, Y., Srikanth, V., Salazar-Morales, A. I., Jain, R., O’Brien, J. P., Yi, S. M., Soni, R. K., Samatey, F. A., Yalcin, S. E., & Malvankar, N. S. (2021). Structure of Geobacter pili reveals secretory rather than nanowire behaviour. Nature, 597(7876), 430–434. Specktor, B. (2020, September 18). Scientists find “secret molecule” that allows bacteria to exhale electricity. Livescience.com; Live Science. ‌Basic Biology of Oral Microbes. (2015). Atlas of Oral Microbiology, 1–14. Many females have evolved traits to avoid harassment by Cameron Duke Berlin, S. (2021, August 30). Female Octopuses Throw Debris at Unwanted Mates Who Pester Them, Study Shows. Newsweek; Newsweek. Feldblum, Joseph T., Wroblewski, Emily E., Rudicell, Rebecca S., Hahn, Beatrice H., Paiva, T., Cetinkaya-Rundel, M., Pusey, Anne E., & Gilby, Ian C. (2014). Sexually Coercive Male Chimpanzees Sire More Offspring. Current Biology, 24(23), 2855–2860. Female hummingbirds avoid harassment by looking as flashy as males. (2021). Female hummingbirds avoid harassment by looking as flashy as males. Phys.org. Godfrey-Smith, P., Scheel, D., Chancellor, S., Linquist, S., & Lawrence, M. (2021). In the Line of Fire: Debris Throwing by Wild Octopuses. Hosken, D. J., Alonzo, S., & Wedell, N. (2016). Why aren’t signals of female quality more common? Exeter.ac.uk. Male-like ornamentation in female hummingbirds results from social harassment rather than sexual selection. (2021). Current Biology. Power Play. (2018). National Wildlife Federation. Wielgus, R. B., & Bunnell, F. L. (1994). Sexual Segregation and Female Grizzly Bear Avoidance of Males. The Journal of Wildlife Management, 58(3), 405. Why do tea leaves sink? by Ashley Hamer originally aired June 10, 2018 James Norwood Pratt. (2010, August 16). The Ancient and Best Way to Brew Loose-Leaf Tea. The Atlantic. Inglis-Arkell, E. (2014, May 6). Why Do Your Tea Leaves Move To The Middle Of The Cup? Gizmodo. Ouellette, J. (2016). The Strange Physics of Tea Leaves Floating Upstream. Nautilus. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 12, 2021

Muscles Remember Training and a Black Hole Made a Star Explode

Learn how quickly previously trained muscles bounce back after inactivity; and how a black hole made a star explode. Previously trained muscles bounce back after inactivity by Grant Currin Seaborne, R. A., Strauss, J., Cocks, M., Shepherd, S., O’Brien, T. D., van Someren, K. A., Bell, P. G., Murgatroyd, C., Morton, J. P., Stewart, C. E., & Sharples, A. P. (2018). Human Skeletal Muscle Possesses an Epigenetic Memory of Hypertrophy. Scientific Reports, 8(1). Prior training can accelerate muscle growth even after extended idleness. (2021, August 18). EurekAlert! Wen, Y., Dungan, C. M., Mobley, C. B., Valentino, T., von Walden, F., & Murach, K. A. (2021). Nucleus Type-Specific DNA Methylomics Reveals Epigenetic “Memory” of Prior Adaptation in Skeletal Muscle. Function, 2(5). Episode about previous research: A black hole collided with a star and made it explode in a merger-triggered supernova by Briana Brownell Dong, D. Z., Hallinan, G., Nakar, E., Ho, A. Y. Q., Hughes, A. K., Hotokezaka, K., Myers, S. T., De, K., Mooley, K. P., Ravi, V., Horesh, A., Kasliwal, M. M., & Kulkarni, S. R. (2021). A transient radio source consistent with a merger-triggered core collapse supernova. Science, 373(6559), 1125–1129. Stellar collision triggers supernova explosion. (2021, September 2). EurekAlert! ‌A Black Hole Triggers a Premature Supernova – First Observation of a Brand-New Kind of Supernova. (2021, September 5). A Black Hole Triggers a Premature Supernova – First Observation of a Brand-New Kind of Supernova. SciTechDaily. ‌Plait, P. (2021, September 6). So, a star may have eaten a black hole and exploded. SYFY WIRE; SYFY WIRE. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 11, 2021

School Should Start Later, Daydreaming Perks, Hycean Planets

Learn about why high school starts too early; why daydreaming might be a good sign; and finding life on Hycean planets. High school starts too early in all but 3 US states — but things are changing by Steffie Drucker Roy, S. (2014, August 26). AAP Recommends Delaying School Start Times to Combat Teen Sleep... Sleep Review. CDC. (2020, May 29). Schools Start Too Early. Centers for Disease Control and Prevention. National Teacher and Principal Survey (NTPS). (2017). Ed.gov; National Center for Education Statistics. Jacobs, F. (2021, August 27). Here’s how early school begins – and why it is bad for students. Big Think; Big Think. Sleep for Teenagers | Sleep Foundation. (2009, April 17). Sleep Foundation. Daydreaming Might Be a Sign of an Efficient Brain by Reuben Westmaas Daydreaming is Good. It Means You’re Smart | News Center. (2017). Gatech.edu. ‌Godwin, C. A., Hunter, M. A., Bezdek, M. A., Lieberman, G., Elkin-Frankston, S., Romero, V. L., Witkiewitz, K., Clark, V. P., & Schumacher, E. H. (2017). Functional connectivity within and between intrinsic brain networks correlates with trait mind wandering. Neuropsychologia, 103, 140–153. A wandering mind reveals mental processes and priorities. (2012). Wisc.edu. ‌Levinson, D. B., Smallwood, J., & Davidson, R. J. (2012). The Persistence of Thought. Psychological Science, 23(4), 375–380. Forget Earth-like planets — it's time to look for alien life on Hycean planets by Briana Brownell New class of habitable exoplanets are “a big step forward” in the search for life. (2021, August 26). University of Cambridge. ‌Madhusudhan, N., Piette, A. A. A., & Constantinou, S. (2021). Habitability and Biosignatures of Hycean Worlds. The Astrophysical Journal, 918(1), 1. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

October 8, 2021

Simple Wildlife Solutions, Sunlight’s Sexy Hormones, Trivia

October 7, 2021

Human-Wildlife Conflict and Believing Leisure Is a Waste of Time

October 6, 2021

Pills Can Detect Radiation, Metabolism Myth, Waking Up on the Wrong Side of the Bed

October 5, 2021

“Mini Brains” That Grew Eyes and How the FDA Saved Babies

October 4, 2021

Psychology of Online Trolls, Rattlesnake Illusions, Blazars

October 1, 2021

Blowhole Origins, Weather Manipulation, How to Slow Aging

September 30, 2021

Could Science Stop Aging? And the Milky Way’s “Broken Arm”

September 29, 2021

Future You Is a Stranger, Babylonian Trig, Reversed Organs

September 28, 2021

Your Second Brain, Jupiter’s Hot Atmosphere, Placebo Buttons

Learn about the “second brain” in your gut; what makes Jupiter’s atmosphere so hot; and why placebo buttons are useful. The 'second brain' in your gut might have evolved before the brain in your head by Cameron Duke Nield, D. (2021). The “Second Brain” in Your Gut Might Have Evolved Before The Brain in Your Head. ScienceAlert. Rao, M., & Gershon, M. D. (2016). The bowel and beyond: the enteric nervous system in neurological disorders. Nature Reviews Gastroenterology & Hepatology, 13(9), 517–528. Spencer, N. J., Travis, L., Wiklendt, L., Costa, M., Hibberd, T. J., Brookes, S. J., Dinning, P., Hu, H., Wattchow, D. A., & Sorensen, J. (2021). Long range synchronization within the enteric nervous system underlies propulsion along the large intestine in mice. Communications Biology, 4(1). Hadhazy, A. (2010, February 12). Think Twice: How the Gut’s “Second Brain” Influences Mood and Well-Being. Scientific American. Researchers have solved the decades-old mystery of Jupiter's hot atmosphere by Briana Brownell Hendricks, S. (2021, August 10). Solved: A 50-year mystery about Jupiter. Big Think; Big Think. ‌Berman, R. (2021, July 14). Every 27 minutes, there’s an X-ray aurora on Jupiter. Here’s why. Big Think; Big Think. Space scientists reveal secret behind Jupiter’s “energy crisis.” (2021, August 4). Phys.org. ‌O’Donoghue, J., Moore, L., Bhakyapaibul, T., Melin, H., Stallard, T., Connerney, J. E. P., & Tao, C. (2021). Global upper-atmospheric heating on Jupiter by the polar aurorae. Nature, 596(7870), 54–57. ‌Yao, Z., Dunn, W. R., Woodfield, E. E., Clark, G., Mauk, B. H., Ebert, R. W., Grodent, D., Bonfond, B., Pan, D., Rae, I. J., Ni, B., Guo, R., Branduardi-Raymont, G., Wibisono, A. D., Rodriguez, P., Kotsiaros, S., Ness, J.-U., Allegrini, F., Kurth, W. S., & Gladstone, G. R. (2021). Revealing the source of Jupiter’s x-ray auroral flares. Science Advances, 7(28), eabf0851. Placebo buttons give us the illusion of control that we crave by Cameron Duke Baraniuk, C. (2015). Press me! The buttons that lie to you. Bbc.com. Jenkins, H. M., & Ward, W. C. (1965). Judgment of contingency between responses and outcomes. Psychological Monographs: General and Applied, 79(1), 1–17. Langer, E. J. (1975). The illusion of control. Journal of Personality and Social Psychology, 32(2), 311–328. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.

September 27, 2021

Moral Outrage Online, Cuttlefish Memory, Sounds Have Shapes

Learn about the dark side of likes and shares; how cuttlefish memory stays sharp in old age; and bouba and kiki shapes. Likes and shares push people to express "moral outrage" by Steffie Drucker Brady, W. J., McLoughlin, K., Doan, T. N., & Crockett, M. J. (2021). How social learning amplifies moral outrage expression in online social networks. Science Advances, 7(33), eabe5641. “Likes” and “shares” teach people to express more outrage online. (2021, August 13). YaleNews. ‌Diaz, J. (2021, May 6). Want To Send A Mean Tweet? Twitter’s New Feature Wants You To Think Again. NPR.org. ‌Mosseri, A. (2019). Instagram’s Commitment to Lead Fight Against Online Bullying | Instagram Blog. Instagram.com; Instagram. Cuttlefish memory stays sharp in old age, making them the first animal with this trait by Cameron Duke Cuttlefish retain sharp memory of specific events in old age, unlike humans, study finds. (2021, August 17). EurekAlert! Schnell, A. K., Clayton, N. S., Hanlon, R. T., & Jozet-Alves, C. (2021). Episodic-like memory is preserved with age in cuttlefish. Proceedings of the Royal Society B: Biological Sciences, 288(1957), 20211052. You Probably Know Which Shape Is A Bouba And Kiki by Joanie Faletto Etchells, P. (2016, October 17). The bouba/kiki effect: how do we link shapes to sounds? The Guardian; The Guardian. ‌Do Sounds Have Shapes? (2015). Psychology Today. Huang, H. (2019, June 28). What’s the Neuroscience Behind the Bouba/Kiki Effect? NBB in Paris. ‌‌Ramachandran, V. S., & Hubbard, E. M. (2018). Synaesthesia -- A window into perception, thought and language. ‌Maurer, D., Pathman, T., & Mondloch, C. J. (2006). The shape of boubas: sound-shape correspondences in toddlers and adults. Developmental Science, 9(3), 316–322. Follow Curiosity Daily on your favorite podcast app to learn something new every day withCody Gough andAshley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to to start your 7-day free trial. discovery+ is currently only available for US subscribers. See omnystudio.com/listener for privacy information.