Lying takes more brain power than truth

Neuroscience reveals that telling a lie demands significantly more brain effort than simply speaking the truth. When you're honest, your brain uses straightforward pathways. But to lie, your brain must suppress the truth, invent a false story, and then keep it consistent. This complex process activates multiple brain areas, especially the prefrontal cortex, which handles planning and self-control. A 2002 study by psychiatrist Sean Spence confirmed this using fMRI scans. This extra mental work explains why deceit can feel stressful, offering insights into human behavior and even improving lie detection methods.