Renné Hernández, discusses the dangers of relying on painkillers as a running strategy. He argues that painkillers can mask underlying injuries, create dependencies, and potentially harm the body in the long run. He emphasizes the importance of understanding the body's natural signals and learning to differentiate between pain that is normal for exercise and pain that indicates a more serious injury. He advises runners to seek professional help when needed and prioritize their long-term health by avoiding unnecessary reliance on painkillers.