Kısaca
Placebo is not pure imagination; expectation and context can influence pain and stress circuits. The brain can sometimes activate its own pain relief systems more strongly.
Believing a pill will work can sometimes make a real difference. This is not being fooled, it is the brain prediction engine shaping the body.
Expectation can influence networks that process pain and recruit neurochemical systems. That is why placebo is always controlled in clinical trials.
Even the same drug can feel different depending on delivery and trust. Context becomes part of biology.
This shows why communication matters in care. Science reminds us mind and body are linked more tightly than we assume.