Full Moon Effect: Confirmation Bias

Many claims that link a change in human and animal behaviour during full moon nights may be related to confirmation bias, a tendency to fit new information into something that is already believed to be true.

The idea of the full moon creating havoc in our minds, making us sleepless and violent is a legend that went mainstream, and could likely be stories of just a few people who are affected by the lunar force, and need to be studied more.