Define occasional: of or relating to a particular occasion; created for a particular occasion â occasional in a sentence of or relating to a particular occasion; created for a particular occasion; acting as the occasion or contributing cause of somethingâ¦
The list of types of Mental illness mentioned in various sources includes: 1  Depressive disorders. 2  Depression. 3  Dysthymic disorder. 4  Bipolar disorder. 5  Cyclothymic disorder. 6  Anxiety disorders. 7  Panic disorder. 8  Social phobia. 9  Specific phobias.
Mental Illness Basics. Mental illnesses are diseases or conditions that affect how you think, feel, act, or relate to other people or to your surroundings. They are very common. Many people have had one or know someone who has. Symptoms can range from mild to severe. They can also vary from person to person.