Merriam-Webster defines mental health as "A state of emotional and psychological well-being in which an individual is able to use his or her cognitive and emotional capabilities, function in society, and meet the ordinary demands of everyday life."
Merriam-Webster (rječnik) definira mentalno zdravlje kao "Emocionalno i psihološko stanje u kojem je pojedinac u stanju koristiti svoj kognitivne i emocionalne sposobnosti, funkcija u društvu, te zadovoljiti običnim zahtjevima svakodnevnog života."