mental
adj.adj. relating to the mind and how you think or feel. You use this word to talk about things happening in your brain rather than your physical body.
adj. relating to the mind, intellectual processes, or psychological well-being.
Playing chess requires a lot of mental effort.
The athlete focuses on her mental health just as much as her physical training to prepare for the competition.
Prolonged isolation can cause severe mental fatigue, gradually eroding a person's ability to process complex emotions or maintain focus on demanding tasks.
Borrowing from Middle French mental, from Late Latin mentālis, from mēns (“mind, disposition; heart, soul”) + -ālis (“-al”, adjectival suffix).
c. 1727, from Latin mentum (“the chin”) + -al.
The adjective is typically used attributively before a noun to distinguish cognitive phenomena from physical ones.