AUTHOR=Li Qi , Wang Mengyao , Yan Junjie , Jiake Wu , Zhao Liang , Wang Xin , Yao Bowen , Cao Lei TITLE=Exploring meaning in life from social network content in the sleep scenario JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1642085 DOI=10.3389/fpubh.2025.1642085 ISSN=2296-2565 ABSTRACT=IntroductionThe exploration of life’s meaning has been a key topic across disciplines, and artificial intelligence is now beginning to investigate it.MethodsThis study leveraged social media to assess meaning in life (MIL) and its associated factors at individual and group levels. We compiled a diverse dataset consisting of microblog posts (N = 7,588,597) and responses from user surveys (N = 448), annotated using a combination of self-assessment, expert opinions, and ChatGPT-generated insights. Our methodology examined MIL in three ways: (1) developing deep learning models to assess MIL components, (2) applying semantic dependency graph algorithms to identify MIL associated factors, and (3) constructing eight subnetworks to analyze factors, their interrelations, and MIL differences.ResultsWe validated these methods and bridged two foundational MIL theories, highlighting their interconnections.DiscussionBy identifying psychological risk factors, our work may provide clues to mental health issues and inform possible intervention.