Modern psychology reveals an unsettling truth: we are slaves to our mental impulses. “Much of our thinking takes place below the surface of consciousness, influencing our thoughts and behaviours,” says psychologist Cordelia Fine, the author of A Mind Of Its Own (R150, kalahari.com). These blips in rationality are called “cognitive biases”. Tweak the way you think and you’ll banish poor decision-making for good. Let’s get inside your head…