psychoneuroendocrinology
/ˌsʌɪkəʊnjʊərəʊˌɛndə(ʊ)krɪˈnɒlədʒi/noun
The branch of science concerned with the relationships between psychology, the nervous system, and the endocrine system.
Origin
1970s; earliest use found in Journal of Neurological Science. From psychoneuroendocrine + -ology.