"What Is Love?" from DW Documentary investigates love through the lens of science, emotion, and human biology. It explores how hormones, senses, attachment, and sexual chemistry influence romantic connection and relationships. The film also covers "broken heart syndrome" and the health effects of emotional distress. By combining expert research with relatable storytelling, it demystifies one of life’s most powerful forces. Enlightening and thought-provoking, the documentary reveals how love shapes our decisions, well-being, and personal evolution.