Naturally acquired active immunity occurs when the person is exposed to a live pathogen, develops the disease, and becomes immune as a result of the primary immune response. Artificially acquired active immunity can be induced by a vaccine, a substance that contains the antigen.
The main cause of neck pain is tension. During periods of intense anxiety, your muscles tense up dramatically. Muscle tension tightens the muscles, especially in the shoulders, back, and neck. The more anxiety you experience, the more your tension may cause significant pain and discomfort. A related issue comes from the mindset of those with anxiety. Many people get muscle tension in their neck during times of stress.
WebMD Symptom Checker. WebMD Symptom Checker. Pain or discomfort, Stiff neck and Throat tightness. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms pain or discomfort, stiff neck and throat tightness including Allergic reaction, Muscle strain, and Generalized anxiety disorder. There are 22 conditions associated with pain or discomfort, stiff neck and throat tightness. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.