Meaning of the word "a man is as old as he feels, (and) a woman as old as she looks" in English

What does "a man is as old as he feels, (and) a woman as old as she looks" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a man is as old as he feels, (and) a woman as old as she looks

US /ə mæn ɪz æz oʊld æz hi filz, ænd ə ˈwʊmən æz oʊld æz ʃi lʊks/
UK /ə mæn ɪz æz əʊld æz hiː fiːlz, ænd ə ˈwʊmən æz əʊld æz ʃiː lʊks/
"a man is as old as he feels, (and) a woman as old as she looks" picture

Idiom

a proverb suggesting that a person's age is defined by their attitude or physical appearance rather than chronological years

Example:
He still goes hiking at eighty because a man is as old as he feels.
She spends a lot on skincare, believing that a woman is as old as she looks.