Yes, even the study says as much, for example: "In our study, there was a significant difference in chili intake among people with different education levels. T

Yes, even the study says as much, for example: "In our study, there was a significant difference in chili intake among people with different education levels. Therefore, it is possible that the confounding effect of education may still contribute to the relationship between chili intake and cognitive function." So it's equally possible they discovered that poor people eat more spicy food than rich people in China... If there actually is a causal relationship, we would expect to see much higher rates of dementia in India or Mexico, which doesn't seem to be the case.