显示出较高水平的功能性健康，有较低的跌倒风险和更好的认知功能，发生中等程度和严重的运动功能受限或社会交往能力受限的风险减少。

Exhibit higher levels of functional health, a lower risk of falling, and better cognitive function; have reduced risk of moderate and severe functional limitations and role limitations.

youdao

还有一项健康指数的测定，包括情绪、体格、功能和社会水平。

Another measured well-being at the emotional, physical, functional and social levels.

youdao

通常认为原因是多方面的，包括遗传，神经递质水平改变，神经内分泌功能改变，以及心理社会因素。

They are believed to be multifactorial and involve heredity, changes in neurotransmitter levels, altered neuroendocrine function, and psychosocial factors.

youdao