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Black older adults experience worse brain and cognitive aging than White older adults, on average. Racially patterned psychosocial stressors may contribute to these disparities. Maintaining white matter health is important for cognitive aging, particularly among Black older adults, and it is uniquely vulnerable to stress. Examining associations between racial discrimination and white matter may elucidate mechanisms of disparities. A sample of Black older adults in the Washington Heights-Inwood...

Air pollution, a leading environmental health risk, claims millions of lives yearly, impacting health across the lifespan. Despite widespread acknowledgement of air pollution-related disease burdens, eliminating air pollution remains challenging. Many regions are reliant on fossil fuels or biomass for basic survival, and developed economies striving to reduce air pollution face persistent barriers. Climate change complicates intervention efforts, as rising temperatures and extreme weather (for...

No abstract

Atmospheric nitrogen (N) deposition is generally expected to stimulate plant carbon (C) sequestration and promote tree growth, thereby mitigating atmospheric CO(2) accumulation. Yet, the magnitude of N deposition contribution to forest productivity remains contentious. While correlative studies suggest substantial plant growth enhancement, controlled fertilization experiments typically demonstrate a limited impact. This discrepancy may arise from whether or not to consider canopy N uptake...

This study aimed to examine the association between energy-adjusted consumption patterns of different types of bread, including whole-grain and white bread, and the risk of sarcopenia in older adults. In this cross-sectional study, sarcopenia was assessed using three tests: appendicular skeletal muscle mass (ASMM), handgrip strength, and gait speed, in 1,325 older adults from the Birjand Longitudinal Aging Study (BLAS), conducted between September 2018 and April 2019. Bread consumption was...

CONCLUSIONS: Adherence to a healthy lifestyle is associated with a significantly lower risk of all-cause mortality in older people, especially among those with multimorbidity.

The revised classification will help ensure different giraffe populations are adequately protected, conservationists say

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.

Science, Volume 389, Issue 6762, August 2025.