Irrational thoughts enter our brains and affect our actions more often than we’d like to admit. From the sugary donut you regretted before taking your first bite, to getting upset with others for making the same mistakes you do — irrationality comes in many forms and seems to carry plenty of drawbacks.

Yet, researchers note that the behaviour also gives our overly-taxed brains a rest and can even spark new innovations.

• While irrationality can sometimes trip us up, it can also fuel creativity and innovation.
• Our irrational behaviours are associated with our desire to do something different. It can be considered an integral part of our survival and progression.
• We may believe we are the smart...