Listening to the music at a loud volume .
that secrete their products, hormones, directly into the blood rather than through a duct.
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To treat muscle cramps, it is important to relax the muscle. Stop any activity and stretch gently the muscles and to hydrate your body. Also, if muscle cramps is a regular occurrence then it is recommended to add more magnesium in the diet. <span />
Explanation:
Psychological is the correct answer!