We make decisions everyday based on what we know. How you perceive the world, others and issues is largely determined by cognitive biases. We are all prone to hundreds of proven cognitive stumbling blocks that cause us to think and act irrationally.

Research suggests that there are a number of cognitive stumbling blocks that affect your behaviour, and they can prevent you from acting in your own best interests.

Cognitive biases are tendencies to think in certain ways that can lead to systematic deviations from a standard of rationality or good judgment, and are often studied in psychology and behavioral economics.

They are mistakes made by the brain when reasoning, evaluating or other cognitive processes. These limitation in our thinking is a flaw in our judgment that can be attributed to errors of memory, social attribution, and miscalculations.

This infographic created by Samantha Lee and Shana Lebowitz, and originally published on Business Insider, shows 20 cognitive biases that are probably screwing up your decisions.

cognitive biases