1 Identify the different types of published interpretations of the tax law issued by the IRS, understand their importance in answering a tax question, and locate published interpretations relevant to a tax question.
Growing pains are most common from ages 2-12, typically end by the teen years, and are slightly more common in girls than in boys. As for the cause of growing pains, there is no evidence that a childâs growth is actually painful. Health professionals believe that physical activity during the day, such as running, climbing, or jumping, contributes to leg pain at night because of the impact of the physical activity on the musculoskeletal system.
Things to remember. 1  Many children have pains in their legs without any obvious cause and these are often called growing pains.  Even though the child can be in a lot of pain, no damage is happening to the child's bones or muscles, and growing pains can respond to simple treatments.