mental health

noun

1. One's emotional well-being, especially with reference to one's outlook on life, ability to cope with stress or the absence of a mental disorder.

   “This makes greater efforts to promote wellbeing and to look out for colleagues not just a moral imperative, but a financial one, too. The cost of inaction was recently outlined in a report by Deloitte, which estimated that poor mental health costs employers in the UK up to £45 billion per year.”