Please choose the correct ending to complete the given sentence: Health: [header] How to relax your eyes [title] Close your eyes. [step] Do this sitting up to prevent yourself from falling asleep. Close them as tightly as you can to help your eyes relax.

Ending1: [title] Breathe in deeply from your diaphragm. [step] As with any anxious activity, your breath is a key ingredient of relaxation. Ending2: It might be tempting to resist the urge to blink. Do not force your eyes to shut unless you really need to or do not want to. Ending3: [substeps] Hold this position for a few seconds, and then quickly open your eyes. Repeat it three to five times to help your eyes relax. Ending4: [title] Get up from the bed and move around a bit. [step] Try tensing and then relaxing your skin in different ways.

Answer format: ending1/ending2/ending3/ending4