The following link may be of some help:
http://www.helpguide.org/mental/anxiety_types_symptoms_treatment.htm
If anxiety and depression are correlated, there are three possible directions of causality. These are anxiety causes depression, depression causes anxiety, and there is an environmental stimuli that causes both anxiety and depression.
To find the cause of anxiety I go to lightlectureseries.com and look up information on the topic. Lightlectureseries.com has many great articles on anxiety that help me learn the causes and the treatments for anxiety.
Anxiety
Sleep deprivation is proven to be one of the leading causes of anxiety. However it seems to be a viscous circle as anxiety creates sleep deprivation, and when we are deprived of sleep it again causes anxiety.
It is usually described as a side effect of a drug. Paradoxical anxiety is when a drug meant to relive anxiety, causes it instead.
obsession
Anxiety
sympathetic
Stress and anxiety are often used interchangeably but there are differences between the two. Stress is a response to an event that causes physiological stress in the body, while anxiety is a response to an event that causes psychological stress.
Many things can cause an anxiety attack. Something you fear happening that you may have no control over will be something that causes an anxiety attack along with lack of sleep and the inability to eat.
An anxiogenic is any form of drug which causes anxiety.
anxiety