PDI与健康、认知功能和老龄化的关系：研究现状及未来方向

翻译：非常多的研究探索了这三个指数和健康结局的关系。还有很多研究正在探索PDI和认知功能、老龄化的关系，但还没有得出一致的结论，还需要更丰富和全面的研究内容：Many studies have explored the relationship between these three indices and health outcomes. There are also numerous studies currently investigating the relationship between PDI and cognitive function, aging, but no consistent conclusions have been drawn yet, indicating the need for more extensive and comprehensive research.