Chills are usually associated with fever. The word itself refers to a feeling of being cold and shivering. This is caused due to a rapid process of contracting and relaxing of the muscles in the body. When the body detects that a fever may be setting in, it contracts and relaxes the muscles rapidly in order to bring up the body heat and fight the fever.
from Health and Fitness Articles from EzineArticles.com http://ift.tt/1O6BQJq
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