<unk>  is a physiological state characterized by cognitive, somatic, emotional, and behavioral components.  These components combine to create the feelings that we typically recognize as fear, apprehension, or worry.<unk>  is often accompanied by physical sensations such as heart palpitations, nausea, chest pain, shortness of breath, or headache.
Anxiety
Phobia
Work aversion
Somatization
Euphorbia
Sleep disorder
Sleep disorders
Dental fear