Please choose the correct ending to complete the given sentence: Health: [header] How to treat muscle spasms [title] Stop doing the activity. [step] When a muscle spasm begins, stop your activity. Spasms can happen during exercise or while doing normal daily tasks.

Ending1: At the first sign of a spasm, stop what you are doing and try to deal with the spasm. Although they can be painful, there are generally no long-term concerns. Ending2: If you experience muscle spasms, stop the activity immediately and take an ice pack. [substeps] Complete another activity, such as, walk, bike, or swim when you experience a cramp. Ending3: Stopping activities will help you relax and reduce your risk of further injury. [substeps] For example, if you are going for a long walk, stop when you begin to feel dizzy or nauseous. Ending4: They are usually mild and last for a few minutes and then go away. They usually happen when you workout in gym or other environments.

Answer format: ending1/ending2/ending3/ending4