now we will ask leon arthur, well, to take our patient to her and look at her kidney. kidneys and what kidney problems can cause a huge increase in blood pressure second the organ that controls e, pressure in our body and any problems with the blood supply to the kidney by the kidney vessel with narrowing of the renal artery leads to blood pressure, because the kidney thinks that little blood pressure comes to it, the low it is produced, which rise in young people. it can be fibrovascular dysplasia, but the elderly simply. an ordinary atherosclerotic plaque, which, uh, clogs a vessel, and then in people whose pressure was compensatory, it suddenly becomes uncompensated and almost impossible to go, that is, older age atherosclerosis goes everywhere, plaques. if a person does not drink statins, it is formed everywhere, if a plaque in the renal artery increases, the pressure will rise and the pills will stop working. here is our leonardovna. now he is looking at what is happening with the kidney vessels of our guests. and we invited another girl to us, also a young young

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open semifinal since arthur ashe in 1972, and he did it on the court named after ashe. tiafoe the son of immigrants from sierra leoneing him luck! wishing him luck! >>> ump next, t nurtec odt is the only medication that can treat my migraine right when it strikes and prevent my next attack. don't take if allergic to nurtec. most common side effects, in less than 3%, were nausea, indigestion/stomach pain. treat & prevent - all in one. this isn't charmin! no wonder i don't feel as clean. hurry up dad! here's the new charmin ultra strong. ahhh! my bottom's been saved! f shes ant. ahhh! enjothe go with charmived! >>> firefighters are facing not just raging wildfires and staffing shortages, but they're also battling so-called forever chemicals, a possible contributor to the high rate of cancer deaths among firefighters. cbs' mark strassmann reports on new technology that aims to reduce the risk. >> reporter: for america's firefighters, the irony is jarring. chemical foam they sprayed on fires for decades to protect us was a hidden threat to them. >> i looked at them. foam has carcinogens? >> reporter: in waxhaw, north ca

open semifinal since arthur ashe in 1972, and did it on the court named after ashe. tiafoe, the son of immigrants from sierra leoney his next match on friday. wishing him luck. coming up next, the hidden danger facing firefighters, the chemicals linked to cancer in their equipment and what's being done to stop it. done to stop it. er wonder what everyone's doing on their phones? they're investing with merrill. think miss allen is texting for backup? no she's totally in charge. of her portfolio and daniel g. she's building a greener future and he's... running a pretend restaurant. and phil? phil has questions, but none of them are about his portfolio. digital tools so impressive, your money never stops working for you with merrill, a bank of america company. ♪ ♪ this is the moment. for a treatment for moderate-to-severe eczema. cibinqo — fda approved. 100% steroid free. not an injection, cibinqo is a once-daily pill for adults who didn't respond to previous treatments. and cibinqo helps provide clearer skin and less itch. cibinqo can lower your ability to fight infections, including tb. before and during treatment,

arthur ashe stadium. the first black american male to reach that milestone since ashe did it 15 years ago. the 24-year-old son of immigrants from sierra leonel appearance friday nightress his big win coming two days after he upset 22-time grand slam champion rafael nadal. >> man, this is wild, this is crazy. >> tiafoe is being talked about as the future of american men's tennis. and that future's looking bright. that's "nightline." you can watch all our full episodes on hulu. we'll see you right back here same time tomorrow. thanks for staying up with us. good night, america. check out this time space wormhole i creat how's it work? let me see your togo, and i'll show you.

arthur ashe. tiafoe is 21 years old and the son of immigrants from sierra leone.er tonight whom he will face on friday, but we're all rooting for him here on kwoe"the lead," listen to th lead from whence you get your podcast and mr. wolf blitzer next door in a place i like to call "the situation ♪ ♪ >>> happening now, rising fears that former president trump may have endangered national and international security after a new report that highly classified material on a four-nations nuclear defenses was seized at mar-a-lago. also tonight the bidens welcome the obamas back to the white house for the unveiling of their official portraits, we'll get an insider account of the historic event and an in-depth look at the water crisis in jackson, mississippi, that's left a 6-year-old terrified he will die if he drinks from the fountain at school. welcome to our viewers here in the united states and around the

arthur ashe stadium. and in that crowd, guys, his parents. his parents who immigrated from war-torn sierra leone to the united states. his dad worked as a day laborer and maintenance man at a tennis facility where they converted an office into a home for him and his two sons to stay with him five nights a week because mom was working two jobs. it's because of th access to coaches and a facility and now here he is and this explains so much of the emotion you see. it's the story, the backstory of his family and what landed him in the spot in the first place and he has finally maybe broken through. >> tell you what, he was not intimidated at all, t.j. i watched the entire match. what about the women's side? two americans left on the women's side. >> 18-year-old coco gauff and then, of course, jessica pegula, these two are both in the quarterfinals, on course to possibly face each other in the final. and get this, these two ladies are actually doubles partners so some intrigue there. this was supposed to be, of course, the serena slam her good-bye, but i think we're seeing american tennis is probabl