Who said "I've learned that laughter is medicine for the soul."?

This quote is attributed to Olaf.

I've learned that laughter is medicine for the soul. - Olaf

"I've learned that laughter is medicine for the soul."

Olaf Humor

"Some people are worth melting for."

"I like warm hugs."

"Hi, I'm Olaf, and I like warm hugs."

"You can't marry a man you just met."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."