20 cognitive biases that screw up your decisions

You make thousands of rational decisions every day - or so you think.

From what you'll eat throughout the day to whether you should make a big career move, research suggests that there are a number of cognitive stumbling blocks that affect your behavior, and they can prevent you from acting in your own best interests.

Here, we've rounded up the most common biases that screw up our decision-making.

Samantha Lee/Business Insider

Gus Lubin and Shana Lebowitz contributed to this article.