Educational video describing the anatomy of the tensor fasciae latae muscle. Become a friend on facebook: http://www.facebook.com/drebraheim. Follow me on twitter: https://twitter.com/#!/DrEbraheim_UTMC. 1  Education. 2  Standard YouTube License.
The specific cause of body aches (myalgia) are the interleukins, which are primarily produced by the macrophages. These interleukins cause pain, body aches, hypersensitivity of the nerves, etc. Some of the interleukins (such as IL-2) cause the fever seen during the flu, and probably the headaches. Since these interleukins are produced in response many different kinds of bacterial and viral infections, symptoms such as fever, myalgia, and headaches can be seen in infections by many different etiologic agents.
Muscle aches, or myalgia, are extremely common. Almost everybody has experienced discomfort in their muscles at some point. Because there is muscle tissue in nearly all parts of the body, this type of pain can be felt practically anywhere. Often, people who experience muscle aches can easily pinpoint the cause. This is because most instances of myalgia result from too much stress, tension, or physical activity. Some common causes include: muscle tension in one or more areas of the body.