These books and text work towards describing the powerful effects of movement on mindbody connection. Some speak on the effects of sunlight, vitamin D as well as natures healing abilities. In the text, movement has been accounted for in boosting blood supply to the brain by over 200%!
In turn, during movement based outdoor exercise we secrete catecholamines (uplifting mood boosting neurochemicals.)
In addition, numerous scientific articles have found the impressive results of exercise and sunlight when taken with a placebo vs various antidepressants matched with no exercise. These studies have found the experimental group to pan out much happier in comparison to those who only took antidepressants. Research in this area can be powerful for all age groups.