Performance enhancement refers to various methods and practices aimed at improving an individual's physical or mental capabilities, particularly in sports and exercise. This can include techniques such as strength training, nutrition, and the use of ergogenic aids like supplements to boost performance levels. The pursuit of performance enhancement is often a topic of debate, especially regarding the ethical implications of using certain substances. While some methods are widely accepted and legal, others, such as steroids, are banned in competitive sports due to their potential for unfair advantage and health risks.