Multiple Choice, Multiple Answers (Reading) — practice #rmcma-002

The placebo effect describes a genuine improvement in a patient's condition after receiving a treatment with no active ingredient, such as a sugar pill. Far from being imaginary, the response can be measured: brain imaging shows the release of natural painkillers, and some patients report real relief from symptoms. The effect appears stronger when the patient expects to improve, when the ritual of treatment feels convincing, and when a trusted clinician delivers it. Researchers stress, however, that placebos do not shrink tumours or cure infections; their influence is largely confined to symptoms shaped by the brain, such as pain, nausea and fatigue. Understanding the effect is vital for clinical trials, where new drugs must outperform a placebo to be judged genuinely effective.