The Thalassophobia subreddit has been around since 2013, and it’s become an incredibly popular place since then. It currently has 1.2 million members, and it is home to countless posts featuring how frightening and amazing the world’s bodies of water can be. From photos of creatures that look like they’re from another planet to gigantic waves that could take out entire towns, this online community certainly makes it clear how one could be scared of vast bodies of water. Personally, I’ve always loved swimming in the ocean and taking a trip to a lake, but it only takes one close encounter with drowning to remind you just how powerful water is.

If you’ve never heard of thalassophobia, let’s break down exactly what it is and how it typically manifests itself. Similar to any other specific phobia, Healthline explains that thalassophobia can include symptoms such as restlessness, feeling on edge or worried, being unable to concentrate, irritability, muscle tension, sweating or looking flushed, increased heart rate, trembling, chest pain or discomfort, a feeling of impending doom, a sense of loss of control, upset stomach, chills or hot flashes, and trouble sleeping. In short, it can certainly negatively impact a person’s quality of life.