The fear of the ocean is called thalassophobia. It is a specific phobia characterized by a persistent and intense fear of deep bodies of water such as the sea, oceans, or lakes. People with thalassophobia either avoid deep bodies of water altogether or endure them with overwhelming anxiety. The level of fear they experience is extremely disproportionate to any actual danger. Symptoms of thalassophobia include heart palpitations, excessive sweating, shaking, sudden shortness of breath or trouble breathing, feeling of impending doom, and feeling of losing control. Triggers of thalassophobia include the ocean, lakes, photos or movies of deep water, etc.. Thalassophobia can be treated with cognitive-behavioral therapy (CBT) and exposure therapy. In exposure therapy, the person is gradually exposed to the feared object or situation in a safe and controlled environment to help them overcome their fear.