I think you are being very dismissive there.

After all, the placebo effect happens in your body, which your mind inhabits. These are not two separate systems interacting by some magical means. This is one system with various subsystems that interact all the time.

Concrete mechanism of the placebo effect is still unknown, but the observation that your immune system can be influenced by your mental state isn't in itself magical. Our bodies respond to all sorts of mental states. We get red in face when embarassed, and sometimes must run to the toilet when scared etc.

All this "psionic" "paranormal" label stuff would only apply if someone could do it to other people without them even knowing.