The pandemic-related decline in child and adolescent mental health has become a national emergency. ... Jadyn Brown, 16, has spent more than half of her high school experience at home staring at teachers through a computer screen. And as much as she’s grateful that school is back in person this year, it’s still far from normal. “Right now we have a schedule where we are not in lunch because of the Covid cases,” says Jadyn, a junior at Eastern High School in Voorhees. “So I miss the idea of being around my friends and not having to be like, “Oh, what if this person has it?” On top of that, she says it’s still a struggle to get up so early, make it to school on time and manage her demanding workload after so many sedentary months. She’s far from the only kid still adjusting to in-person learning. School districts across South Jersey have made changes big and small to deal with a school population that’s far needier than in pre-pandemic days. The grief, anxiety and depression childre...