It's no secret that there's a connection between emotional states and body chemistry (neurochemistry included.) I suggest it's a two way street of communication

It's no secret that there's a connection between emotional states and body chemistry (neurochemistry included.) I suggest it's a two way street of communication, maybe in the manner of a feedback loop. Why shouldn't thoughts influence the body? If the body can cause thoughts, then surely it could go both ways such that thoughts effect changes in the body. Because of course thoughts are a bodily process. It seems to me that dualism is in error and consequently has done marked damaged to our understanding of ourselves. Thoughts are not non-physical and neither are the mind & body distinct or separable.