Final answer:
The placebo effect is a psychologically based reaction influenced by belief in a treatment's effectiveness, showcased through examples like athletes and medical research.
Explanation:
Placebo effect is the beneficial effect that results from a subject's belief in a treatment, not from the treatment itself. It is a psychologically based reaction that occurs because the subject is treated, even if the treatment is a placebo with no physiological effect.
In medical research, a placebo is a 'fake' treatment given to the control group to study the placebo effect. For example, athletes performing better due to a perceived superior sports drink when both drinks are the same illustrates this phenomenon.
The placebo effect is a response to treatment based on the individual’s belief in its efficacy, showing the power of the mind in influencing health outcomes.
Learn more about Placebo effect here:
https://brainly.com/question/33600640