I like this particular chart of the emotional, physical, and behavioral effects of different colors, but the whole post is one of the best explanations of color I've seen. Explanations here for primary, secondary, and tertiary colors, as well as complementary, analogous, triadic, and warm/cool colors.
Experiences from the earliest days of childhood play an important role in shaping the brain’s development. Sadly, traumatic episodes leave the deepest impressions, manifesting themselves in adulthood in health issues ranging from increased stress to substance abuse. Learn more about the lasting impact of childhood trauma on chronic adult disorders.