Cognitive biases are the systematic shortcuts our minds take when processing information. They shape real-world decisions in ways first clarified by early pioneers such as Herbert Simon (1955), and later empirically mapped by Amos Tversky and Daniel Kahneman (1974), with further contributions by Gerd Gigerenzer (1996), showing how these mental shortcuts can be both limiting and adaptive. These scholars demonstrated that biases like confirmation bias (the tendency to interpret new evidence as confirmation of one's existing beliefs or theories), availability heuristics (mental shortcuts where people judge the likelihood of an event by how easily similar instances come to mind), and loss aversion (the tendency for people to feel the pain of a loss more strongly than they feel the pleasure of an equivalent gain) arise because the brain quickly filters overwhelming information using learned patterns; while this often helps us act efficiently, it can also distort judgment, amplify fear, or anchor us to poor choices. Understanding these mechanisms empowers individuals to pause, question automatic reactions, and choose responses that improve emotional balance, relationships, and long-term wellbeing, while also guiding societies to design fairer policies, healthier information environments, and institutions that support wiser collective decisions. Shortcuts of the mind enable us to live and work more efficiently, but we must always ensure that they work for us and others, rather than against us! The greatest key to this is found only in Christian psychology which maintains that life is best lived under the inspiration and guidance of the Holy Spirit. As the Apostle Paul writes: “Walk in the Spirit, and you shall not fulfil the lust of the flesh” (Galatians 5:16).