In 2025, creativity meets neuroscience. Marketers are turning to biometric creativity—using EEG and heart-rate feedback loops—to design ads that respond to real human emotion in real time. By tracking brainwaves and physiological reactions, brands can understand not just what audiences say  they like, but what their bodies reveal they feel . How It Works Portable EEG headsets and heart-rate sensors measure attention, emotional arousal, and cognitive load as people view ads or