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.
Rating Newest Oldest. Best Answer: Herniated discs are caused by tight neck muscles, it's the only way you get enough pressure for the time needed to do the damage. Tight neck muscles will cause the dizziness and headaches. When you have tight neck muscles they restrict everything going in and out of your head, including the blood.