Biases
How biases affect our decision ?
A cognitive bias is a systematic error in thinking that occurs when people are processing and interpreting information in the world around them and affects their decisions and judgements.
The concept of cognitive bias has been introduced by Daniel Kahnemann and Amos Taversky in 1972. I strongly recommend to read the book Thinking Fast and Slow which details the working of our brain.
There are several biases that we should be aware of whenever we are making decisions :