There's a lot of research that has been done in looking at how stress has an impact on the body and whether or not.... Some stress in certain situations is adaptive, healthy and good, but the thing is that we need to....
For some children, they experience chronic stress. They don't get relief from it. They don't have someone to help them process that stress or relieve that stress, so they're in a current state of hyperarousal or their nervous system is always engaged, so they always have that hyperarousal. When you live in that state, your heart rate is elevated, your blood pressure is elevated and you have many different impacts on your physical health and your mental health. Living in that constant state has a long-term impact on health.
There is a lot of evidence to show that it can have an increased likelihood not only of physical health conditions, but also of mental health conditions. Often, children who live in a home where they experience violence are always in that hyper state of arousal of chronic toxic stress.