Final answer:
Most mental disorders in the DSM have complex etiologies, but neurodegenerative and neurodevelopmental disorders have better-understood causes. Cardiovascular disorders and asthma have well-established psychophysiological connections influenced by stress and emotions.
Step-by-step explanation:
The question pertains to the etiology and pathophysiology of diseases, specifically those that can be classified using the diagnostic criteria of the DSM (Diagnostic and Statistical Manual of Mental Disorders). When considering disorders with an acceptable etiology or pathophysiology, it is challenging, as most mental disorders involve a complex interplay of genetic, environmental, and psychological factors. However, certain neurological disorders such as neurodegenerative disorders (e.g., Alzheimer's disease, Parkinson's disease, and ALS) and neurodevelopmental disorders (e.g., ASD, ADHD, schizophrenia, and major depression) have identifiable potential causes.
Epilepsy and stroke, which are also neurological in origin, demonstrate understood mechanisms and often have more defined treatment paths. Yet, even for these disorders, there is still a considerable amount of ongoing research to fully comprehend their causes and to develop effective treatments.
It is important to note that disorders such as cardiovascular and asthma are also heavily researched in terms of their psychophysiological connections, with stress and emotional factors influencing the immune system and contributing to these diseases.