the story. >> why else do we think it's important to talk about our mood first thing in the morning? do we y mean words to them? >> no. >> no, right? >> reporter: a different kind of bell rang in one denver public school recent limit recently. a calming sound for students who educators say are still stressed out two years into a global pandemic. a new district-wide requirement for all students. at least 20 minutes devoted to mental health. every grade, every classroom, every day. >> and we found that they come back, a lot of times, a shell of their former selves prior to the pandemic so we understand we have to be patient, we have to, you know, persevere. >> schools are where this emotional trauma shows up. >> hello. >> reporter: so, that human connection piece and being able to respond to one another, just human to human, that was something that some of our kids lost out on.