This idiom means “Laughter is best medicine”.
Literal Translation / Meaning: Laughter is best medicine
Use (사용시기) Whenever wanting to suggest that half of diseases we get are usually because of taking stress for no reason, then you can use say
웃음은 최고의 명약이다
Vocabulary (어휘) + Grammar (문법)
웃음은 : Laughter (은 is topic marker here)
최고의 : best
명약 : Effective Medicine
이다 : be / is
같은 문법로 만든 다른 문장
하루에 10분만 뛰면 몸이 더 좋아질 거예요.