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We all have had one at some point of time. A muscle spasm is a common occurrence, when you extend the body under conditions of dehydration and heat, beyond a stage. When undernourished and overworked, running low on energy and fluids, muscles get spasms (short painful contractions). Through this Buzzle article, I provide an overview of the symptoms, causes and treatment strategies to you to heal muscle spasms. Muscle Function Muscles, with their contractile behavior, are primarily accountable for body motions. In ordinary cases, these voluntary muscles start contracting, when the brain sends electrical signals. These motor neurons stimulate the activation of calcium ions, within the cells of a muscle and act as a catalyst. There are two types of proteins within the muscle cells- Myosin and Actin. The release of calcium ions leads to interaction with proteins, which leads to sliding past one another of proteins of these ions. Recapture of ions leads to unlinking again. Muscle Spasm Occasionally, people have an uneasy feeling of tightness in muscles of legs, neck, arms or their back. Sportspersons, athletes or the folks associated with strenuous tasks get cramps in their own muscles. Both these forms are referred to as muscle spasms. Normally it's characterized by an abrupt burst of unpleasant, painful sense. Every muscle in the body is susceptible to muscle spasm, although it's more common in calf muscles or muscles of the back or neck. Muscle will not loosen after sudden stiffening when the body witness's muscle spasm. When it occurs in legs, it's also known as 'Charley Horse'. Normally, these muscle cramps up the crop from the simple fatigue of muscles, after surprising heavy exercise when the muscle is just not habituated to weights that are additional. It can also occur during pregnancy. Yet, there are few instances when disorders or electrolyte imbalances in neuromuscular functions cause spasms. Also, it could be a complication of certain medicines. Spasms can be catalyzed by the sudden moves, especially a sudden, tweaking move. Stretching that is slow and slow will be a successful option in such scenarios. In conditions that are abnormal, unusual contraction action of muscle cells at any period can result in these spasms. There is specific mechanism between the brain and the spinal cord and motor neurons of the central nervous system to regulate contraction activity. Interruption of the system results in a spasm. Being over sensitive, motor neurons may go bizarre in their functioning. Excitement takes place as muscle sheath itself is quite sensitive, without appropriate contraction. Discharged Calcium ions may not get recaptured in time, resulting in protracted contraction of muscles. Possible reasons behind the interruption of brain mechanism include too stress on particular muscles, injured nerve pathways, stroke, trauma, multiple sclerosis, spinal cord injury. Occasionally, nerve damage can result in a long-term shortening of the muscle, into contracture.