To attempt an answer for this question based soley on mental illness... Antisocial Personality Disorder (APD) is a disorder in which little to no emotion is present in a person. You might be more familiar with this disorder known as psychopathy or sociopathy where a person may be referred to as a psychopath or sociopath.
sociopathy
Sociopaths can't feel empathy, they live on instant gratification and satisfying their own need regardless of who gets hurt
De-realization
and/or depersonalization
is a more appropriate answer, socio path psychopaths feel anger, people with de realization don't know what they feel, thus "no emotions" .
Sociopathy
anxiety
No, it is only an emotion, unlike others which can be elevated to the status of 'mental disorder' by their effects on the body and mind.
Nerious ANXIETY
In the most recent (2012) version of the DSM-5 manual in psychiatry, every emotion is classified as a mental disorder. Each emotion that a person feels can be considered a symptom of something more serious.
There is not a single gene responsible for bipolar disorder that has been identified.
no
Emotional is related to health because if your depressed you will get stressed and it can give you a mental disorder.
The limbic system is largely responsible for emotion.
it deals with memory and visceral and motor responses to emotion
Usually schizophrenics have a flat, monotone voice. Sociopaths also don't have emotions.
The relation between thyroid disorder andbipolar disorder is that there is an increased tendency to develop bipolar disorder in persons having one particular form of thyroid disorder. It has been shown that autoimmune thyroiditis, specifically, is the thyroid dysfunction that is responsible for this.