Dr Humphrey said another recent study carried out by Oxford University researchers and published in the Proceedings of the Royal Society, found that social laughter released endorphins which not only increased feelings of wellbeing but could increase pain tolerance.
The study also found that laughter and the resulting endorphins strengthened social bonds.
"As we approach the second anniversary of the February 2011 earthquake, what better way to aide our recovery than shaking with laughter at the SCIRT World Buskers Festival," he said.
Festival creative director Jodi Wright, who created the event 20 years ago, says that she feels putting on a good show for Cantabrians to have a laugh is important, now more than ever.
"It's so good to see the community coming together, having a good time, and having a good laugh.
"The festival is always great but Cantabrians probably appreciate it even more now after all we've been through.
"The big crowds have proven that we know it's alright to take time out from the recovery and have a good time."
