Final answer:
Scientists follow ethical guidelines and regulations, such as obtaining informed consent and minimizing harm, to ensure that people are not harmed by experimental treatments.
Step-by-step explanation:
In order to ensure that people are not harmed by experimental treatments, scientists follow a set of ethical guidelines and regulations. These guidelines include obtaining informed consent from participants, minimizing both physical and psychological harm to the participants, and maintaining participant privacy and confidentiality. Scientists also utilize Institutional Review Boards (IRBs) to review and approve research studies involving human participants to ensure their safety and ethicality.