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

This quote is attributed to Jeff Winger.

I've learned that laughter is the best medicine. - Jeff Winger

"I've learned that laughter is the best medicine."

Jeff Winger Humor

"I'm going to be honest with you, I love the smell of my own farts."

"You're all idiots for trusting me."

"I'm like a 12-year-old girl at a One Direction concert."

"You can't just make up the rules as you go along."

"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."