steven silverstein is a professor of neurology and director of jefferson headache center.ys the pain we feel actually protects us. >> it's a warning and i think that's why the body reacts the way it reacts. >> really cold water or ice in your mouth it can damage the nerve cells but damage the tissue. it's getting frost bite inside your mouth. >> you're pretty good at this. >> that's why silverstein says our nerves send a signal to our brain resulting in a short but sharp pain which forces us to put down the spoon. >> the brain is giving us a warning stop eating that water ice so fast. >> research hers found the sensation could be caused by sudden increase in blood flow to the brain's interior cerebral artery. when that was couldn't fricked the pain wore off. how can you make it stop? a lot of people say put the thumb at the top of the roof of your mouth. does that work? >> depends how hot your thumb is. dip warm water. >> take steps to prevent it altogether. >> eat slowly wait until your ice cream warms up and don't gulp. >> you'll keep eating your ice cream and water ice.

steven silverstein is a professor of neurology and director of jefferson headache center.says the pain we feel actually protects us. >> it's a warning and i think that's why the body reacts the way it reacts. >> really cold water or ice in your mouth it can damage the nerve cells but damage the tissue. it's getting frost bite inside your mouth. >> you're pretty good at this. >> that's why silverstein says our nerves send a signal to our brain resulting in a short but sharp pain which forces us to put down the spoon. >> the brain is giving us a warning stop eating that water ice so fast. >> research hers found the sensation could be caused by sudden increase in blood flow to the brain's interior cerebral artery. when that was couldn't fricked the pain wore off. how can you make it stop? a lot of people say put the thumb at the top of the roof of your mouth. does that work? >> depends how hot your thumb is. dip warm water. >> take steps to prevent it altogether. >> eat slowly wait until your ice cream warms up and don't gulp. >> you'll keep eating your ice cream and water ic

we'll talk about it tonight with jake silverstein and nellie bowles and jason rubin. >> you have the level of paradigm shift we're talking about as far as technological innovation because what virtual reality is while it seems like a buzzword thing and people are saying it's the evolution of video games and cinema, really what it is is technology communicating with us in a human way. in a way the world communicates with us through our senses and fundamentally the medium is human experience. >> >> >> rose: the foreign minster of argentina. funding is provided by the following: >> and by bloomberg, a provider of multimedia news and information services worldwide. captioning sponsored by rose communications from our studios in new york city, this is charlie rose. >> rose: susana malcorra is here. she is argentina's minister of foreign affairs pointed by mauricio macri who became the first conservative president since 1916 and spent a decade at the united nations and served as under secretary and is expected to be the u.n. candidate for welcome. >> thanks for having me. >> rose: listen,

assault a 16 year old girlld yesterday afternoon.yest it happened in the bricksbric cheyney in silversteinsarah simmons is life where it happened. sarah, what details do you have for us tonight. >>reporter: police won't telltl us exactly which apartmenthich building it happened in.happ as you can see behind us theretr are actually quite a few buildings up and along here. it's the 14,000 block of castle l boulevard. montgomery county police tell us the 16 year old was able to keeo her wits about her and give police a description of the suspect. let's take a now. the suspect is described as a blackmail in his early 30s, approximately five foot nine toe five feet ten and weighing about 200 pounds. he has short hair and a breed and we has last seen wearing a teal and black shirt shirt and blue jeans and booths. police say the 16 year old was trying to enter her apartment h building when the suspect askedp the victim to hold the door for him. once inside the suspect tried ti strike up a conversation. she noticed he was acting suspicionly and did the first thing that came to her mind andd she to

actually, one of the big selling points for the "access hollywood" -- from "access hollywood," rob silversteint i was like okay. >> so the opposite of donuts? billy and kit give you hiking. we give you tequila donuts. >> it will be a good lifestyle change. you always have a place if you want to come visit. >> our wonderful l.a. bureau, which you get to work with. >> they're incredible. >> sent a little message. >> oh. >> so excited to have you. >> whoo! >> can't wait. we're starting to celebrate. >> yes. >> oh. >> wow! >> i like this l.a. lifestyle already. >> boozing it up while hiking. >> i like the way they roll. >> awesome. i'm very excited. >> it's the happy hour hike. >> we like it. >> notice they each conveniently had one, unrelated to your news. >> there are other reasons why i was all into this. >> i know. >> i've been to our l.a. bureau. but we usually leave before >> now you see what happens. >> they're such a great group. we're really excited. >> very happy for you. you're going to kill it out there. >> i'm not leaving yet. it will be sort of mid july maybe. >> still have time. >>