Please choose the correct ending to complete the given sentence: Health: [header] How to get high without drugs [title] Get comfortable. [step] Before you begin to use this breathing method you will want to make sure you are comfortable, relaxed, and ready to focus. This technique will allow you to increase the oxygen in your body and can produce unusual sensations.

Ending1: Get ready and make sure you won't be distracted before using this technique. [substeps] This technique is done most easily when sitting or laying down. Ending2: [substeps] Your breathing can cause perspiration, excessive sweating, and headaches. You should rest for several hours to help to relax and sleep. Ending3: [substeps] Come to a comfortable position and notice your breathing. Notice your heartbeat, which may be higher or lower than it normally is. Ending4: [substeps] Be seated on a cushion with your feet flat on the floor, facing a wall. Draw a loop of air into your lungs and blow air out slowly.

Answer format: ending1/ending2/ending3/ending4