Brain Sharp News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> announcer: this is "nbc nightly news" with lester holt good evening, and welcome. after a dangerous confrontation in the skies, a warning tonight from russia to the u.s. not to fly aircraft near its airspace throwing the onus on the united states for that midair collision between a russian and american plane over the black sea yesterday. the u.s. making clear its pilotless surveillance plane was flying legally in international airspace when it was knocked from the sky by a russian fighter jet that had been flying close and aggressively the act raising alarms in the pentagon. sec...

>> reporter: you don't have to get lost in the desert to get the brain benefits experts suggest changing your usual route, turning off the gps on routine trips, and getting lost on purpose for the challenge of finding your way. for kathy, who has a family history of dementia, her good old map and compass could be the key to keeping her brain sharp dr. john torrez, nbc news, cade creek, arizona >> good for her. we have a lot to cover in our second hour of "chris jansing reports. let's get right to it. at this hour, surf, sand, and seaweed? we'll tell you about an enormous and fran...

three feet of snow in parts of the northeast. in the west evacuations after storms bring rain and floods to california. now crossing the country. stocks falling on wall street amid fears another major bank could fail. the terrifying accident at a texas zoo. a tree falling on multiple people including a child. what we're learning. the high-stakes hearing. the judge in texas who could ban the abortion pill nationwide, even in states where abortion is legal. what happened in court? and america has a new favorite pup after more than 30 years. which breed beat out labrador retriev...

>> reporter: you don't have to get lost in the desert to get the brain benefits experts suggest changing your usual route, turning off the gps on routine trips, and getting lost on purpose for the challenge of finding your way. for kathy, who has a family history of dementia, her good old map and compass could be the key to keeping her brain sharp dr. john torrez, nbc news, cade creek, arizona >> good for her. we have a lot to cover in our second hour of "chris jansing reports. let's get right to it. at this hour, surf, sand, and seaweed? we'll tell you about an enormous and frankly kind o...

Google. what do you think about this idea? if you were working with them, would you encourage them to turn down those offers or would you have taken them? >> i would have taken it. i think that people forget that things go up and things go down. and you know, are you going to have a different lifestyle if you make an extra billion dollars? no. and i think that a lot of times it's good to have a whole bunch of ideas and sell one and unlaunch another one. that's where you keep your brain sharp. >> what are some lessons you want people to take away from this book? >> the most thing is be intense ...