Laughter is the key to increased productivity, according to office search website officebroker.com.

Jim Venables, managing director at officebroker.com, said: “An upbeat working environment creates a better atmosphere and when used appropriately, humour can encourage higher staff morale and more energy. It’s about taking what you do very seriously while not taking yourself too seriously.”

Ros Coleman, stress therapist and former vice chair of the International Stress Management Association UK, said: “Humour in the work place can enhance motivation and team building, as well as helping to promote health and workplace wellness. It can also reduce workplace stress and tension.”