Optimism bias in brain helps us focus on the bright side of life

HUMANS have an inbuilt tendency to always look on the bright side of life, scientists have found.

Researchers identified an “optimism bias” in the brain that resists accurate information about the world.

This means people “update” their beliefs accurately only when things turn out to be better than expected, not when they are worse than expected, according to the study by University College London scientists.