They say laughter is the best medicine, and apparently it's true!
People in Brighton are taking part in Laughter Yoga classes.
It seems the exercises increase oxygen and endorphins in our bodies, boosting the immune system and reducing stress.
Our reporter Malcolm Shaw has been 'aving a larf! Watch his report here:
It was the American poet Ella Wheeler Wilcox who said "Laugh, and the world laughs with you; weep, and you weep alone".
100 years later and her words still ring true.
Welcome to the world of Laughter Yoga. A masterclass in how to chuckle your way to health and happiness.
Emma Jennings, Laughter Yoga Leader:
Laughter Yoga was invented by Dr Madan Kataria in India in 1995 as a treatment for his patients in Mumbai.
Now, it's a global phenomenon with thousands of laughter clubs all over the world.
This one in Brighton has been going for seven years.
BENEFITS OF LAUGHTER YOGA:
Laughter pumps more oxygen into the bloodstream, boosts feel-good hormones like endorphins, and bolsters the immune system.
Laughter pumps more oxygen into the bloodstream
Boosts endorphins and the immune system
Can reduce stress in the workplace
Can boost self-esteem
Your mind becomes sharper and clearer
That's got to be enough to raise a smile.