Trump's use of hypnotic language

[Uncle Joe]

11. There are differences between hypnosis and placebos but placebos have power over the mind as well,

which in turn can affect the body.

(snip)

Brain and body[edit]

For more details on this topic, see neural top down control of physiology.
The brain has control over the body processes affected by placebos.

In conditioning, a neutral stimulus saccharin is paired in a drink with an agent that produces an unconditioned response. For example, that agent might be cyclophosphamide, which causes immunosuppression. After learning this pairing, the taste of saccharin by itself is able to cause immunosuppression, as a new conditioned response via neural top-down control.[70] Such conditioning has been found to affect a diverse variety of not just basic physiological processes in the immune system but ones such as serum iron levels, oxidative DNA damage levels, and insulin secretion. Recent reviews have argued that the placebo effect is due to top-down control by the brain for immunity[71] and pain.[72] Pacheco-López and colleagues have raised the possibility of "neocortical-sympathetic-immune axis providing neuroanatomical substrates that might explain the link between placebo/conditioned and placebo/expectation responses."[71]:441

A recent fMRI study has shown that a placebo can reduce pain-related neural activity in the spinal cord, indicating that placebo effects can extend beyond the brain.[73]

Dopaminergic pathways have been implicated in the placebo response in pain and depression.[74]

https://en.wikipedia.org/wiki/Placebo