This is the best advice for raising happy kids. From sobbing toddlers to moody preteens. I've said it many times to my family, but couldn't have said it any better than Bones! Cry out the stress hormones.
"Have you wept yet?... Wept. Cried. For your loss.
There is a very well-established neuronal connection between the lacrimal gland and the brain's limbic system associated with emotion.
Stifling the body's need to cry in emotionally difficult situations is unhealthy." Bones 9.19
One caveat, you need to offer to stay and hold them while they cry, and only let a baby cry alone unless you fear hurting it.