Leave any questions you have in next week's video: https://www.youtube.com/watch?v=y4pZYtXwZdA 00:35 - Start! 2:05 - Is there an ethical way to harness the placebo effect? What are your thoughts on placebo surgeries or sugar pills that actually increase the patients sense of well being? 3:30 - JoneseyBanana I often chew a lot of sugar free gum when studying to prevent myself grazing on junk food. Are there any potential downsides to this, especially dentally or to the jaw itself? (Our video on artificial sweeteners: https://www.youtube.com/watch?v=Mf82FfX-wuU) 4:36 - In the Guns and Physicians vid (https://www.youtube.com/watch?v=nXJmdMoNuY4), you said you get a physical every year. I remember you told John Green elsewhere that annual physicals (for men) are probably not necessary. Can you elaborate? 6:27 - How are you able to keep up with all the new research on such a wide range of topics? And how do you make any judgements on areas of conflicting research? 8:36 - What are your thoughts on accutane (isotretinoin) and its continued use on people as an acne medication? 10:09 - Do we know anything about brain freezes? What causes them, how to prevent them, and how to stop them once they've happened? 11:19 - Can you talk about ozone therapy and Aloe Vera products (such as forever living products)! Both are promoted as miracle treatments! Any research? Any results? Your opinion? 12:55 - What's the actual research on best hand washing practices? Length of time? Best type of cleanser? Water temperature? (Link to antibacterial soap video: https://www.youtube.com/watch?v=FS3LcIURelY) 15:00 Can you talk about what adults who had their vaccinations as kids should do in areas where there are measles outbreaks? 15:55 - How can a hypochondriac, like myself, do from having anxiety attacks and annoying his/her doctor? How can we separate real pain from psychosomatic pain? 17:20 - My wife and daughter have celiac disease, and we're planning a