Please choose the correct ending to complete the given sentence: Travel: [header] How to cope with culture shock after a trip abroad [title] Set a proper sleep schedule to combat jet lag. [step] After a long time abroad, a plane trip to a new time zone can be tricky to deal with. To make it easier, set a consistent time to be in bed each night and stick to it.

Ending1: Going to bed and waking up at the same time each morning, however, can lead to serious jet lag and lose you from " family " or even human contacts. Your family will experience cultural shock, so be sure to be consistent. Ending2: Make sure you are comfortable in your new bed and that you can get up and go to bed at the same time every night. [substeps] For example, set time for 7 pm on the weekdays you are away from school or 5 pm on weekends. Ending3: Although it may be easier for you to stay in bed alone, persistent alone time over your trip can be detrimental to your physical well-being as well. [substeps] Don't allow it to build up into a habit that prevents you from sleeping. Ending4: Adjust it in 15-30 minute increments until you're synced back up. [substeps] If you have trouble falling asleep, put on some relaxing music, take a hot bath, or sit in a chair and read for a few minutes.

Answer format: ending1/ending2/ending3/ending4