For attaining and maintaining mental and emotional health you should get regular exercise and eat nutritious food because exercise relieves stress. Exercise<span> and other physical activity produce endorphin—chemicals in the brain that act as natural painkillers—and also improve the ability to sleep, which in turn </span>reduces stress<span>. </span>
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Opioids are a class of drugs that include the illegal drug heroin, synthetic opioids such as fentanyl, and pain relievers available legally by prescription.
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