dr. david samadi is here. we need to know. they seem to be the latest fad in terms of diets, the acceptable diet. talk about what are the benefits of doing a juice cleanse or putting juice into your day? >> these are becoming more popular. we are always looking for some quick fix. what's the easiest way to lose the weight. >> i have a wedding coming up. >> exactly. fit into that tux and feel great about ourselves. more and more people are using some of these. i was reading about that. this particular one has beets, apple, carrot, lemon andÑi ginger. with beet juice, you can dilate vessels. if you take this for a couple of weeks you can lower your blood pressure and you have to be careful. people may be on pwhraof medications and -- people may be on blood pressure medications and not know it may interact. you're going to feel great, lose some of the water, this suit fits well on you. you feel great initially. then you get a swing of sugars. if you do this for a week you're going to be high and low, and that's not good. that's

dr. david samadi, great to see you. chief of robotics. >> hello, good afternoon, and hello. we start with something that's really important. you go to the doctor, you want antibiotics because you feel lousy and usually you get them. there's a brand new report that says doctors are still overprescribing antibiotics.

. >> and dr. david samadi from lenox hill hospital. we're ready to learn. start with something that's really important. this has to do with a new warning about a disease that many of us rarely worry about and that's measles. measles have been practal