Please choose the correct ending to complete the given sentence: Health: [header] How to release endorphins for pain relief [title] Choose a type of exercise. [step] If you're in pain, the idea of exercising might seem very unappealing. However, exercise is one of the best ways to get an endorphin release.

Ending1: Endorphins are what cause the famous " runner's high, " or feelings of contentment, happiness, and joy. You can even choose a type of exercise that will help mitigate the kind of pain you have. Ending2: [substeps] You can do different types of exercise from a standing or lying down position. Just make sure to keep the same amount of body weight in mind as you will be doing these exercises. Ending3: You can take a walk, do some ice skating, some yoga, use the elliptical, run a few laps in the park, or drink a cup of tea. Going for a walk or jog while leaving the house will naturally help loosen your muscles. Ending4: You might be able to start with quick small steps, such as lowering your blood pressure and eliminating your thoughts or images. You can also work on small movements, such as breathing deeply, relaxing your back, or stretching.

Answer format: ending1/ending2/ending3/ending4