Please choose the correct ending to complete the given sentence: Health: [header] How to be an early bird [title] Make sure to get at least eight hours of sleep. [step] Children and teens need more amount of sleep, because they are growing during the night. [title] Know when you are going to take a shower.

Ending1: [step] Most flight attendants spend their entire flight cooped up in their seats. Just before you takeoff, you should take a shower and notice how nice it smells. Ending2: [step] Whether it is at night or in the morning plan ahead. If you are taking a shower in the morning you might want to wake up a little bit earlier. Ending3: [step] It is vital that you are in a clean, well-insulated environment. You will feel refreshed and fresh, even if you haven't showered the day before. Ending4: [step] For men, shower before you go out. For girls, try to shower between the hours of 4 a.m.

Answer format: ending1/ending2/ending3/ending4