mental

Compared meaning: related to the mind (adjective).

比较义项：心理的（形容词）。

• mental 本词

  More general and everyday; commonly pairs with health, illness, state; used in ordinary conversation, not just clinical or academic contexts.

  更为通用、日常；常与 health、illness、state 等词搭配；用于普通对话，而不仅限于临床或学术语境。

  She takes a walk every morning to look after her mental health.

  她每天早上散步以照顾自己的心理健康。

• psychological

  More formal and analytical; emphasizes underlying mental processes or effects, often used in scientific, academic or clinical discussion.

  更正式、更具分析性；强调潜在的心理过程或影响，常用于科学、学术或临床讨论中。

  The study examined the psychological effects of long-term isolation on astronauts.

  这项研究考察了长期隔离对宇航员的心理影响。

Mental and psychological both mean related to the mind, and are often interchangeable. Psychological stresses the mental process itself, and sounds academic. Mental is more general and common in speech, as in 'mental health'. This does not compare mental meaning 'crazy'.

两词在“心理的、与心智有关的”这一意义上很接近，可互换性较高，但 psychological 更强调心理过程或机制本身，学术感更强；mental 更泛，日常口语中更常用，也可与 mental 组成固定搭配（如 mental health）。这里不比较 mental 的其他俗语用法（如口语中“疯狂的、离谱的”），也不比较 psychological 在心理学学科意义上的专门用法。