Anxiety is a vague, uncertain, and unreliable feeling, an emotion that arises when the value of one's own existence is shaken. Anxiety is an emotion caused by an unspecified or uncertain threat. Fear, on the other hand, is an emotion brought about by a definite threat from a specific object.
Signs of anxiety are widely manifested in physical, psychological, cognitive, and interpersonal areas. On the physical side, the symptoms are usually accompanied by autonomic nervous system reactions, including increased pulse and respiratory rate, thirst, sweating, increased urination, changes in bowel movements, decreased appetite, overeating, nausea, vomiting, and insomnia. In addition to autonomic nervous system reactions, the patient is also aware of emotional reactions such as restlessness, trembling, shaking, lack of coherence and consistency, irritability, as well as depression, self-deprecation, and lack of self-confidence. Anxiety can be (or is?) present on a cognitive level. It also manifests itself in interpersonal relationships.
Anxiety is classified as mild, moderate, severe, and panic. Anxiety is useful as a danger signal from the self-preservation instinct, and mild anxiety can increase attention, stimulate learning and change, and lead to growth. However, when anxiety becomes intense, prolonged in duration, or repetitive and inappropriate to the situation, it becomes pathological anxiety.
Because people with health challenges are more or less anxious,nursing postThe signs of anxiety and its extent asassessmentand to provide appropriate anxiety relief.

References
(1) Japanese Society of Nursing Science, Academic Terminology Review Committee for Nursing Science (ed.): Academic Terminology of Nursing Science, Japanese Society of Nursing Science 4th Academic Terminology Review Committee, 1995.
2) Nojima, S., Minami, Y. (eds.): Handbook of Psychological Care by Nurses: Understanding the Phenomenon and Intervention Methods, Terurinsha, 2000.
(3) G.W.Stuart, S.J.Sundeen (Author)/Y.Higuchi, F.Inaoka, Y.Minami (Supervisors): New Clinical Nursing Science Outline: Psychiatric Nursing 2, Igaku Shoin, 1986.