There is not one single factor that determines happiness or success in work. Conditional are factors like motivation, team-spirit, expertise and a positive attitude towards colleagues, suppliers and partners.
As a strong advocate of sport trainings and fruit snacks during the day, it might not be a big surprise that I incorporated micro-breaks during working hours as well.
At Leiden University they conduct research in this field and yesterday NRC published an interesting article that I completely endorse. To read more – follow the link.