Anxiety is often situation-based, and is, in simple terms, often a fear of the body's reaction to fear. If a person feels fear when giving a speech in front of their oral communications class, for instance, they may in future associate such situations with fear, and avoid giving speeches as often as possible. This can lead to anxiety (sweaty palms, a racing heart, or nausea) or even an anxiety disorder, which can then manifest itself as panic attacks when one is in a situation that reminds them of the one that prompted their fear.

PeopleImages / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.