A handful of studies have linked fish-heavy diets with reduced risk of mental decline in old age.

多种研究表明，侧重于鱼类的饮食可降低年老时脑力下降的风险。

youdao

Delays in mental decline of even up to six months are viewed as having considerable implications for individuals, their families and public health.

在精神衰退上的延迟能达到六个月对个人，他们的家庭和公众健康就已经相当有意义了。

youdao

This points to the idea that the tangles and plaques may not directly impair brain function after all. Something else may cause the mental decline.

从这点来看或许斑块和神经元纤维缠结并不是直接损伤大脑机能，脑力衰退另有原因。

youdao

They were assessed to ensure they had not suffered any mental decline before the study began, and were assessed regularly during the trial.

BBC: Genetic clue to Alzheimer's risk

The experts aren't sure yet, but people with migraines don't seem to be at greater risk of memory loss or mental decline as they age.

CNN: Women's migraines linked to higher stroke, heart attack risk

After 18 months, the average mental decline in the DHA and placebo groups was nearly identical, as measured on two separate tests and rating scales.

CNN: Fish oil ingredient doesn't slow Alzheimer's