We know that excess stress can be harmful to your health. But it's even worse for kids.

FOX's Tom Rigatti reports:

Some researchers believe early ongoing stress can smolder, harming young brains and bodies. Triggers include poverty, neglect and parents' substance abuse, which is only getting worse in the opioid addiction crisis.

Studies now suggest toxic stress can lead to major causes of death and disease in adulthood. As a result, there's a public health response underway, led by an American Academy of Pediatrics recommendation for poverty screening.

And there's now preschool-based programs offering stress-busting breathing exercises.

Tom Rigatti, FOX News.