Boston (Massachusetts) [US], January 19 (ANI): The placebo effect is the well-known phenomenon of a person's physical or mental health improving after taking a treatment with no pharmacological therapeutic benefit - a sugar pill, or a syringe full of saline, for example. Sometimes placebo effects can also harm -the so-called "nocebo effect" occurs when a person experiences unpleasant side effects after taking a treatment with no pharmacological effects. That same sugar pill causing nausea, or that syringe full of saline resulting in fatigue.
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