Researchers Say Kissing Can Transmit Depression and Anxiety

We often associate kissing with love, passion, and emotional bonding. It is seen as one of the most intimate forms of human connection, capable of strengthening relationships and reducing stress. However, recent research suggests that kissing may also have a darker side: the potential to transmit mental health conditions like depression and anxiety. While the idea may sound far-fetched at first, growing evidence from scientific studies—including a recent study conducted in Iran—points to a possible microbial mechanism linking physical intimacy to emotional health.