There are several key reasons why people trust and purchase quack products and services:Desperation for answers: Many customers are desperately looking to solve chronic health problems or health conditions that they perceived to have not been addressed successfully through traditional medicine, and are swayed to alternative solutions that promise miracle solutions or quick-fix solutions that are appealing to customers' sense of desperation.Cognitive biases: There are cognitive reasons psychological biases exist, such as confirmation bias, where people simply hold and change or update beliefs and trust ideas that support their ultimate beliefs, while ignoring or outright disregarding credible evidence or facts. Distrust of alternatives: Some consumers have distrust for traditional medicine and pharmaceutical companies, as they are profit-focused and are harming the health prospects of patients.Hope this helps