Can you drink your own urine? Run yourself to death? This week we explore the science and physiology of how extreme heat effects our bodies. Our intrepid field reporter/co-host, Dave Mason, "visits" Death Valley to see just how hot a person can get. Dr Mel Herbert & Dr Jess Mason talk to experts about heat index and humidity, and all things hotness!
Just how fast and how far can a human go? This week, the physiology and stories of extreme runners. Ultramarathon Man, Dean Karnazes tells us his extraordinary story. We find out about Diane Leather and we get some answers from sports writer David Epstein, and Sports Medicine Physician Dr Matt Baird.
This week in Second Opinion we go a little further with all things smokable. Why do people do it?Mel, Jess & Dave Mason ask Dr Ken Starr some questions about addiction, Dopamine and how receptors work. We revisit Medical Marijuana with a personal story about pain relief and speak to Toxicologist, and Associate Prof of Emergency Medicine, USC, Dr Sean Patrick Nordt about the effects of Hookah and carbon monoxide.