Performance enhancers are substances or methods used to improve an individual's abilities in sports or other physical activities. These can include drugs, supplements, or even specific training techniques that help athletes achieve better results. Common examples are steroids, stimulants, and protein supplements, which can increase strength, endurance, or focus. While some performance enhancers are legal and widely accepted, others are banned in competitive sports due to ethical concerns and health risks. Athletes must be cautious, as using illegal enhancers can lead to serious consequences, including disqualification from events and long-term health issues.