Joe is joined by Brendan Schaub & Eddie Bravo to watch the fights on Sept. 26, 2015. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Dr. Mark Gordon is the Medical Director of Education at Access Medical Laboratory and is recognized as a top leader world wide in Interventional Endocrinology (Anti Aging Medicine). Andrew Marr is a former Green Beret and founder of the Warrior Angels Foundation. http://www.warriorangelsfoundation.org/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

Donald Cerrone is a professional mixed martial artist and former professional kickboxer currently competing in the UFC's lightweight division. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Carl Hart, Ph.D., is an associate professor of psychology and psychiatry at Columbia University. He is known for his research in drug abuse and drug addiction. Hart was the first tenured African American professor of sciences at Columbia University. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Christopher Ryan, PhD is a psychologist, speaker, and author of New York Times best seller "Sex At Dawn" Learn more about your ad choices. Visit podcastchoices.com/adchoices

Unbox Therapy is a YouTube channel "where products get naked." Lewis does in-depth reviews of new tech products releasing to the consumer market. http://www.youtube.com/unboxtherapy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Sebastian Maniscalco is a stand up comedian and he also host his own podcast with Pete Correale called "The Pete and Sebastian Show" available on Spotify. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jane McGonigal is a game designer and author who advocates the use of mobile and digital technology to channel positive attitudes and collaboration in a real world context. Her new book SUPERBETTER is available September 15, 2015. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Tom Segura is a stand-up comedian, and hosts his own podcast with his wife, Christina Pazsitzky called "Your Mom's House" available on Spotify. http://www.yourmomshousepodcast.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jay Leno is a comedian, actor, writer, producer, voice actor, and television host. He was the host of NBC's "The Tonight Show with Jay Leno" and currently hosts "Jay Leno's Garage" available on YouTube. https://www.youtube.com/user/JayLenosGarage Learn more about your ad choices. Visit podcastchoices.com/adchoices

Bryan Callen is an actor and stand-up comedian, and together with Brendan Schaub he also hosts "The Fighter & The Kid" podcast available on Spotify. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Ronda Rousey is a mixed martial artist, judoka and actress. She is the first and current UFC Women's Bantamweight Champion, as well as the last Strikeforce Women's Bantamweight Champion. Edmond Tarverdyan is an MMA and boxing coach and is also Ronda's head trainer. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Abby Martin is an American journalist and former host of "Breaking the Set" for RT America. Check out her work at http://mediaroots.org Learn more about your ad choices. Visit podcastchoices.com/adchoices

Brian Redban is a comedian and the founder of the Deathsquad podcast network. http://deathsquad.tv Learn more about your ad choices. Visit podcastchoices.com/adchoices

Justin Wren is an American MMA fighter. He recently returned from one of his many trips helping the Pygmy people of the Democratic Republic of the Congo. On August 28th, Justin is fighting in Bellator 141 to help raise more awareness. Learn more here: http://FightFortheForgotten.org Learn more about your ad choices. Visit podcastchoices.com/adchoices

Joe is joined by Aubrey Marcus, Brendan Schaub, Bryan Callen, Eddie Bravo, and Tait Fletcher to watch the fights on August 23, 2015. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jeff Ross is a comedian, writer, producer, and director also known as the "Roastmaster General" from his work on the Comedy Central Roasts. His latest special "Jeff Ross Roasts Criminals: Live at Brazos County Jail" is available now on iTunes or http://www.cc.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jeff Novitzky is the VP of athlete health and performance for the UFC. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Brian Redban is a comedian and the founder of the Deathsquad podcast network. http://deathsquad.tv Learn more about your ad choices. Visit podcastchoices.com/adchoices

Ethan Nadelmann is the founder and executive director of the Drug Policy Alliance, a New York City-based non-profit organization working to end the War on Drugs. Learn more about your ad choices. Visit podcastchoices.com/adchoices