fMRI brain scans reveal that people respond positively to video ads that blend emotional storytelling with rational information. Key elements include a strong emotional opening, engaging dialogues, and a logical conclusion. The research involved 113 participants in the Netherlands and the US, who watched 85 video ads. The most effective ads evoked empathy and used dynamic visuals alongside sound, such as music and sound effects. The first ten seconds of an ad are particularly vital in determining viewer appeal. Emotional narratives, especially those that make viewers feel warmth or nostalgia, can enhance ad likability. Ads that help viewers empathize with characters or situations resonate more deeply, fostering a connection to the product. However, the study found that the effectiveness of emotional versus rational messaging varies with the product's price — high-priced items benefit from emotional appeals, while lower-priced products perform better with rational arguments. A real-world example is a Christmas ad from French supermarket Intermarchè promoting plant-based eating. This ad successfully incorporated many of the recommended characteristics, using dynamic imagery and relatable emotional themes. It effectively engaged viewers by showcasing common feelings of guilt around food choices and the warmth of family gatherings, all while providing a clear message about the benefits of plant-based diets.