Even light drinking combined with aging is linked to reduced brain blood flow and thinner tissue
PsyPost • • health
Key Points:
- A recent study in the journal Alcohol found that even low-level alcohol consumption over a lifetime is linked to reduced blood flow and thinner brain tissue, particularly in the cerebral cortex, suggesting potential negative effects on brain health as people age.
- Researchers observed that higher lifetime alcohol intake combined with advancing age was strongly associated with decreased cortical blood flow and thinner cortex in brain regions responsible for executive functions and sensory processing, such as the frontal and parietal lobes.
- The study suggests oxidative stress caused by alcohol and aging may contribute to cellular damage in the brain, but acknowledges limitations including a small sample size, lack of female participants, and unmeasured lifestyle factors.
- Findings challenge current low-risk drinking guidelines and highlight the need for larger, more diverse studies to confirm these results and explore how low-level drinking impacts everyday functions like balance, coordination, and dexterity.
