sinai health system joining us today from new york dr. davis, good to see you again.come back. >> good to see you guys. >> i know you're not a fan of the gop plan as it exists right now, but what about the -- the cruz amendment that offers a choice, where the insurance companies would have to or something that's complaint with the obamacare systemle what do you think of that? >> right, what you're going to end up with is two pools you'll wind up a pool of inexpensive insurance that's rather schism, and you're going to wind up with a pool of people who have a lot of pre-existing conditions, health care problems and very expensive insurance the problem here is that we're taking the healthy people out of the risk pool and as a consequence we're leaving behind in that comprehensive policy those people with pre-existing conditions, chronic disease or people who think they are at risk for illness those policies are going to be terribly expensive because you don't have the healthy people in that pool to bring down premiums >> those policies are already terribly expensive wha

dr. davis agus joins us from lax. good morning. what causes bell's palsy?nough. a never coming off the base of the brain has a hole and if it's inflamed, it gets compromised we think from viral infections shoo she said acupuncture helped. is that a common treatment or are there other methods? >> most of the time it resolves on its own, three to four weeks, sometimes six months. you can give steroids or anti-virals but acupuncture has been tried in several trials but unfortunately it didn't work. time will help. >> how long does it take? does it vary among >> it varies. first describes by a scottish surgeon whose last name was bell. sometimes it takes two to three weeks or six months. when it goes down, the nerves start working in most cases. >> in this interview, she seems to think it was caused by stress. >> certainly when you're stressed, viruses can come out. you can get shing. s or a rekurchs of chicken pox when you're stressed. there may be an association. it's a pretty common disorder, bell's palsy. >> are there long-term effects? >> in a very small n

davis. in the story i was riding into town with the dr. who takes care patients in that town.we pulled in a little strip of the town with 1000 inhabitants. the mcdonald observatory. the clinic is on one end of the town. the dr. said hi to everybody and to me. he is a rancher in his 60s with strong arms. i think i told myself -- picking up a hay bale. yes, he did the wife said, down there. i understand i said. this is been better for me and in my surgery rotation a helped repair hernias. he told me the whole story. how he picked up the hay bill and felt the sudden pain in the groin area and it didn't go away. pull republica party and one of the big issues as many of us remember is the panama canal treaty. he developed the initiative in '76. the panama canal was considered one of the seven wonders of the world. my grandfather was so furious -- grandmother -- that carter was going to give away the canal to panama. she grew up with the canal. this is a great example of american exceptionalism. we succeeded where the french failed and it is important psych psychically to my grandmo

davis, abc news, new york. >> thanks, linds. i'm joined by dr. whitney bowe. you are in the office.evidence showing by taking ingestible collagen, collagen you take by mouth can make a difference in your overall health and the health of the skin and so easy. i mean my patients literally take a scoop of the collagen powder and just stir it into their coffee and mix it into their yogurt. >> does it taste funky. >> it stirs in of flavorless so makes into whatever you use it for. it's new, right? so buyer, beware. you got to look for grands reputable and have solid science behind it. >> anything that can turn back the clock, but does it do anything else for your body? what else does it do? >> it does. so when you think about collagen, it's not just about the skin, when you ingest collagen by mouth your body breaks it down into its building blocks and your body determines where it's going to send those building blocks and how it's going to use them. when you ingest collagen it could end up impacting your bones, muscles, joints, ligaments and skin. >> sounds like all positives to me. >> s

davis' colleague, liam fox, said that a brexit on wto terms would not represent the end of the word. speaking at the wto headquarters, dr. fox said britain is aiming for the best possible trade deal with the eu but warned it may not be possible before the 2019 deadline for the end of brexit negotiations i'm happy to say we're joined by a man who knows a fair amount about negotiations, the deputy secretary of the united nations, lord malik brown, the chair of the business development commission thanks for joining us. >> pleasure. >> i think we've seen david davis flying to brussels yesterday for one of these fleeting visits. it's the end of the second flurry of the brexit negotiations it sounds like there's been some movement on citizen rights the european side saying they want more clarification on this brexit bill. is that reflective of a division within the top echelons of british government about how that bill should be approached >> i think so. we have just gone through a prolonged period of negotiationing with oursenegoti i negotiating with ourselves as a government westminster has been notioning with the cou negot