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 of scary looking blob that s threatening to ruin spring break on south florida beaches. school officials in los angeles scrambling to prevent a three-day strike, which would shut down school for hundreds of thousands of students. straight ahead, where those talks stand right now. the clock is ticking for tiktok the biden administration threatening a ban unless the owners give in to pres
subsided because of the brutal tactics by the regime. in iran there s a collective sense of melancholy and unpredictability and deep, deep resentment towards the government let s have a look at how the last six months panned out six months ago today, 22-year-old mahsa amini was arrested by iran s feared morality police. her alleged crime, violating the country s strict dress code. she died days later in the hospital her family says she had been beaten police deny this for many iranians, this was a tipping point. amini s death set into motion a chain of extraordinary events that have brought the islamic republic to it s core. iranian women began to show their solidarity by ripping off their head scarves in protest. within a week, it became clear this was the most serious challenge to face the islamic republic since its inception in 1979