The belief that some distressing physical symptoms could not be readily explained in terms of neurological impairments contributed most directly to:

The correct answer is unconscious conflicts.

According to the psychologist Sigmund Freud, some physical symptoms that do not appear to have a neurological or physiological basis can be explained in terms of unconscious conflicts. Unconscious conflicts refers to feelings or thoughts that we are not consciously aware of, but nevertheless these thoughts and feelings manifest in the form of distressing physical and even psychological symptoms. 

Feeling very angry and frustrated all the time, or being around someone who is always angry, is exhausting and stressful. Find out about common causes of ongoing anger and how to tell when it’s becoming a problem, and learn what you can do about it.

or just dieThink before you speak. ... Once you're calm, express your anger. ... Get some exercise. ... Take a timeout. ... Identify possible solutions. ... Stick with 'I' statements. ... Don't hold a grudge. ...

Use humor to release tension.