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It's not just moderate evidence, it's overwhelming evidence that if you take away

children's opportunities for independent activity.

They're not going to learn how to be independent,

and that's going to lead them to be anxious and depressed,

fearful about the future, and all the things that we're seeing now.

It's been declared a national emergency.

Mental health among children and adolescents decreased steadily between 2010 and 2020.

By 2019, suicide had become the second leading cause of death for those between ages 10 and 24.

But this mental health decline may have been decades in the making. And according to a team of researchers, it's partly because we're not giving kids

the independence they need. For science quickly, I'm Joseph and Peter Gray, I'm a research professor of psychology and neuroscience at Boston College.

In the September issue of the Journal of Pediatrics, Gray and his co-author is observed a continuous

increase in depression, anxiety, and suicide rates among children

and adolescents since at least 1960 and they link it to a decline in unsupervised play and

other independent activities.

Play is that how children pursue what's fun for them.

That's an immediate source of mental health.

You know, mental health really means I'm happy or I'm satisfied with my life right now.

Grace says that play and other independent activities also have far-reaching long-term effects on children's mental health and

resilience. I think that the real crisis is that young people are losing a

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