well-being
Well-being (noun) means the state of being comfortable, healthy and content in body and mind. Example: “Regular exercise improves both physical and mental well-being.”
How to use well-being
Learner’s notesIn plain EnglishBeing healthy, comfortable and happy.
Neutral; heavily used in health, HR and policy writing.
It is an uncountable noun — there is no plural, so avoid 'well-beings'.
Fill the gap
Can you complete this real example?
Regular exercise improves both physical and mental _____.