- Worry or tension in response to real or imagined stress, danger, or dreaded situations. Physical reactions, such as fast pulse, sweating, trembling, fatigue, and weakness may accompany anxiety.
- The natural response to threat or danger, real or perceived and characterized, in its extreme form, by a rapid heart rate, tremulousness, a dry mouth, a feeling of tightness in the chest, sweaty palms, weakness, nausea, bowel hurry with diarrhoea, insomnia, fatigue, headache, and loss of appetite. Anxiety is a response to stress and is a concomitant of a wide spectrum of diseases. But it is also a vital motivating factor causing us to respond constructively to dangers of all kinds and to make greater efforts in all kinds of situations. Anxiety disorders include Panic Disorders, Obsessive-Compulsive Disorders, Phobias, Post-Traumatic Stress Disorder And Generalized Anxiety Disorder.