Long-term impacts of heatwaves on accelerated ageing

IF 27.1 1区地球科学 Q1 ENVIRONMENTAL SCIENCES

Nature Climate Change Pub Date : 2025-08-25 DOI:10.1038/s41558-025-02407-w

Siyi Chen, Yufei Liu, Yuanyuan Yi, Yiling Zheng, Jun Yang, Tiantian Li, Ta-Chien Chan, Rui Duan, Shenjing He, Cui Guo

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Abstract

Climate change and population ageing are both urgent global challenges. Yet the interaction between these, such as associations between long-term exposure to heatwaves and biological age acceleration (BAA), is unclear. Here we analysed data from 24,922 adults in a longitudinal cohort in Taiwan (2008–2022) and used linear mixed models to show heatwaves accelerate ageing. Heatwaves were defined using both relative and absolute thresholds. BAA was calculated as the difference between biological and chronological age. Each interquartile range increase in the cumulative exposure to heatwaves was associated with a 0.023- to 0.031-year increase in BAA. Moreover, the participants demonstrated gradual adaptation to heatwave impacts over the 15-year period. Furthermore, manual workers, rural residents and participants from communities with fewer air conditioners were more susceptible to the health impacts. This study highlights the need for targeted policies and interventions to strengthen adaptive capacity, delay ageing and promote healthy ageing. Ageing is linked to environmental factors. This study shows that although participants gradually adapted to heat over time, cumulative exposure to heatwaves had stable and adverse impacts on ageing, especially among manual workers, rural residents and those with limited air conditioning.

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热浪对加速衰老的长期影响

气候变化和人口老龄化都是紧迫的全球性挑战。然而，这些因素之间的相互作用，如长期暴露在热浪中与生物年龄加速（BAA）之间的关系，尚不清楚。在这里，我们分析了台湾24,922名成年人（2008-2022）的纵向队列数据，并使用线性混合模型显示热浪加速衰老。热浪的定义采用了相对阈值和绝对阈值。BAA计算为生理年龄与实足年龄之差。热浪累积暴露时间每增加一个四分位数范围，BAA就会增加0.023- 0.031年。此外，在15年的时间里，参与者表现出对热浪影响的逐渐适应。此外，体力劳动者、农村居民和来自空调较少社区的参与者更容易受到健康影响。这项研究强调需要有针对性的政策和干预措施，以加强适应能力，延缓老龄化和促进健康老龄化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Climate Change ENVIRONMENTAL SCIENCES-METEOROLOGY & ATMOSPHERIC SCIENCES

CiteScore

40.30

自引率

1.60%

发文量

267

审稿时长

4-8 weeks

期刊介绍： Nature Climate Change is dedicated to addressing the scientific challenge of understanding Earth's changing climate and its societal implications. As a monthly journal, it publishes significant and cutting-edge research on the nature, causes, and impacts of global climate change, as well as its implications for the economy, policy, and the world at large. The journal publishes original research spanning the natural and social sciences, synthesizing interdisciplinary research to provide a comprehensive understanding of climate change. It upholds the high standards set by all Nature-branded journals, ensuring top-tier original research through a fair and rigorous review process, broad readership access, high standards of copy editing and production, rapid publication, and independence from academic societies and other vested interests. Nature Climate Change serves as a platform for discussion among experts, publishing opinion, analysis, and review articles. It also features Research Highlights to highlight important developments in the field and original reporting from renowned science journalists in the form of feature articles. Topics covered in the journal include adaptation, atmospheric science, ecology, economics, energy, impacts and vulnerability, mitigation, oceanography, policy, sociology, and sustainability, among others.