You're about to listen to a BBC podcast and maybe it's when I had a hand in.

I'm Tammy Walker and I produce podcasts for the BBC.

My role is to give new and diverse creators a voice with the opportunity to build a career.

That's the thing I love about Podcast.

You start with just a good idea.

But then you have the space to see where it goes.

And doing that at the BBC means we can really run with the best stories

while developing the most unique audio talent.

So if you like what you hear, why not check out the huge range of

podcast we've got on BBC Sounds. Hello and welcome to the Witness History Podcast from the BBC World Service with me Jill

Kursley. I'm taking you back to the 11th of January 1998 to Mumbai, India and the first world

laughter day. We were charged with super energy and we were shouting slogan, ho ho, ha ha ha, very good.

East or West, laughter is the best.

I'm the easiest person in this box. Yeah!

Ha ha!

Meet Dr. Madden Kataria.

He's a medical doctor and founder of World Laugh Today.

The idea behind World Laughter Day came about because of Madden's

creation of something called laughter yoga. And to find out more about that, we

have to go back to 1995.

I was writing an article for a health magazine.

After finding so many research studies on laughter

...