This is the 1413th most frequent Catalan word.
mental
"Relating to the mind or mental processes."
Here, 'mental' functions as an adjective modifying 'health', referring to cognitive and emotional well-being.
És important mantenir una bona salut mental.
It is important to maintain good mental health.
In this case, 'mental' describes the type of sharpness, emphasizing intellectual capabilities.
Va demostrar una agudesa mental sorprenent al resoldre el problema.
He demonstrated surprising mental sharpness in solving the problem.
Here, 'mental' is used as a noun, referring to the cognitive elements of the character.