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Purpose <p>We investigated whether living in greener neighborhoods in midlife is associated with slower cognitive decline in later life.</p> Methods <p>We used data on 2,881 participants from the population-based Multi-Ethnic Study of Atherosclerosis. Geocoded residential addresses (1980–2009) were used to derive midlife neighborhood greenness exposure defined as a 10-year mean of annual normalized difference vegetation index values (based on satellite imagery) during the midlife period (ages 45–54). Cognitive testing over ~ 10 years, when the participants were ≥ 55-year-olds, captured global cognition and processing speed. Multivariable linear mixed effects regression estimated associations between the 10-year midlife greenness measure and global cognition and processing speed z-scores in later life and whether greenness-cognition associations varied by age at first cognitive visit.</p> Results <p>Greater midlife greenness was associated with slower annual decline in processing speed in the overall sample. We found no differences in associations by age at first cognitive visit.</p> Conclusion <p>In an ethnoracially and geographically diverse US cohort, living in greener neighborhoods in midlife was associated with slower cognitive decline (i.e., processing speed) in later life.</p>

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Midlife exposure to neighborhood greenness and later-life cognitive decline: The Multi-Ethnic Study of Atherosclerosis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月13日

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  • Lilah M. Besser,
  • Lun-Ching Chang,
  • Kelly R. Evenson,
  • James E. Galvin,
  • Susan R. Heckbert,
  • Jana A. Hirsch,
  • Peter James,
  • Marcia Pescador Jimenez,
  • Joel Kaufman,
  • Samuel N. Lockhart,
  • Diana Mitsova,
  • Kari A. Moore,
  • Bonnie C. Sachs,
  • Timothy Hughes,
  • Ana V. Diez Roux

摘要

Purpose

We investigated whether living in greener neighborhoods in midlife is associated with slower cognitive decline in later life.

Methods

We used data on 2,881 participants from the population-based Multi-Ethnic Study of Atherosclerosis. Geocoded residential addresses (1980–2009) were used to derive midlife neighborhood greenness exposure defined as a 10-year mean of annual normalized difference vegetation index values (based on satellite imagery) during the midlife period (ages 45–54). Cognitive testing over ~ 10 years, when the participants were ≥ 55-year-olds, captured global cognition and processing speed. Multivariable linear mixed effects regression estimated associations between the 10-year midlife greenness measure and global cognition and processing speed z-scores in later life and whether greenness-cognition associations varied by age at first cognitive visit.

Results

Greater midlife greenness was associated with slower annual decline in processing speed in the overall sample. We found no differences in associations by age at first cognitive visit.

Conclusion

In an ethnoracially and geographically diverse US cohort, living in greener neighborhoods in midlife was associated with slower cognitive decline (i.e., processing speed) in later life.