Lyssophobia is the fear of going insane or mad. It is a rare phobia that affects individuals who have an intense fear of losing their sanity or mind. There are a few synonyms that can be used to describe lyssophobia, including psychology-related phobias like agoraphobia, claustrophobia, and acrophobia. Agoraphobia is the fear of being in public places while claustrophobia is the fear of confined spaces. Acrophobia is the fear of heights which can trigger anxiety and panic attacks. While these phobias have different triggers, they can lead to the same feelings of fear and loss of control over one's mind and life.