"The Biology of Belief"
A placebo is a fake treatment (like a sugar pill) with no medical effect. Yet, if a patient believes it will cure them, they often get better. This is the Placebo Effect. It is not just "in your head"; belief triggers real physiological changes.
Expectation activates the brain's prefrontal cortex, releasing natural painkillers like endorphins and dopamine. It proves the powerful link between mind and body. Conversely, the Nocebo Effect occurs when negative expectations cause real harm or pain.