[Solved] Research supports the notion that an overload of minerals in the body causes Alzheimer's disease. Sex Research: The scientific study of human sexuality, including human sexual interests, behavior, and function. Experimenter Bias: A phenomenon in which the beliefs or expectations of the researcher unconsciously influence the outcome of the study. Informed Consent: A process ensuring that a person fully understands and agrees to the terms and conditions of a procedure or activity, especially in the context of healthcare and research. Sexual Behavior: Actions that individuals engage in to express their sexuality, including physical intimacy and erotic activities.