Why might people continue believing in a purported cure that does not work?

People often continue to believe in ineffective cures due to a combination of psychological, emotional, and cognitive factors.

• The Placebo Effect: Patients may experience genuine, measurable improvement in their symptoms simply because they expect a treatment to work, regardless of its actual medical efficacy. This psychological response can lead individuals to attribute their recovery to the quackery rather than natural healing or remission.123
• Emotional Vulnerability: Individuals facing significant stress, pain, or fear—particularly regarding serious or chronic conditions—are often more susceptible to the claims of charlatans. In these moments, the desire for a miracle can override critical judgment.3
• Cognitive Biases: People tend to engage in motivated reasoning, latching onto information that aligns with their existing worldviews or emotional states. Once a belief is formed, it is often resistant to correction due to the "continued influence effect," where false information persists in memory even after it has been debunked.4
• Social and Algorithmic Reinforcement: The magnification of apparent successes by charlatans, combined with social media algorithms that promote engaging but false narratives, can create feedback loops that reinforce and spread misinformation.34