Medical studies are research investigations designed to evaluate the effectiveness, safety, and side effects of treatments, medications, or medical procedures. These studies often involve clinical trials, where participants receive new therapies or placebos to determine their impact on health outcomes. Researchers use various methods, including observational studies and randomized controlled trials, to gather data. The findings from these studies help inform medical guidelines and improve patient care. Regulatory bodies like the FDA rely on this evidence to approve new drugs and treatments, ensuring they are safe and effective for public use.