What is the mental condition ending in penia?

The term "penia" refers to a deficiency or lack of something, often used in medical contexts. When applied to mental conditions, it typically indicates a deficit in a specific area, such as "apathy" or "anhedonia," which can signify a lack of interest or pleasure in activities. While the suffix itself does not denote a specific mental condition, it highlights the absence of a normal psychological function. Conditions like depression or schizophrenia can feature symptoms that involve "penia," reflecting deficiencies in mood or cognitive processes.