This week's questions: 2:04 thoughts on collagen supplementation either as a powder or a in capsule form for a vegetarian 3:33 Is there a publicly available tool which can calculate the Bayesian probabilities for various diagnostic tests? If not, is anybody maintaining a public data set which could be used to produce such a tool? 5:31 Is it just me or are medical issues concerning only/mostly women not researched as much, not taken as seriously, and have fewer treatment options. (E.g. Chronic Fatigue, fibromyalgia) 7:33 One big selling point of repub plan is cross-state plans. Would that be effective? How would plans from FL be effective in IN? 9:30 Any advice for how to clear up an upper respiratory infection more quickly? 9:46 How much TV is bad for kids under 6? 11:35 does taking medication for symptoms slow down the body from fighting a disease? 13:03 Your recent video about marijuana usage and its effects on IBS and Crohn's...were the tests done on THC marijuana or CBD? 13:46 how do i fix my gut bacteria so i'm not depressed? 14:58 What are your thoughts on the Ben Goldacre book "Bad Pharma"? It personally hurts my faith in medical research, and I'm curious how many grains of salt I should take a medical study with. 16:20 Realistically, how hard would it be to convert the US to a more canadian single payer system? 17:53 Is it ok for me to share a water bottle with my dog on walks? She licks the opening of the bottle when i pour the water into her bowl. 20:01 Thoughts about migraine treatment and why it's solvable for some but a chronic condition for many others? 20:38 My three-month-old has a monstrous placental birthmark on the back of his head. Maybe four square inches, and kind of raised and squishy. What is with these things? It should stop growing, right? 21:38 What are some of the sites/blogs/news sources that you look go to on a regular basis? 23:10 advice as a physician for nurses on how you will like us to approach you to communicate o