When starting recovery from opioid addiction, it's important to first consult a healthcare provider. They can help you create a treatment plan for your symptoms of withdrawal that will include a combination of therapy and medication.
Your heart is a pump that is responsible for delivering blood to all parts of your body. Arteries carry oxygen-rich blood from the lungs to nourish the cells, and veins transport oxygen-poor blood on its way back to the heart and lungs. This animation shows how the heart and circulatory system work.