Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to avoid summer weight gain [title] Avoid sleeping in and staying up late. [step] Do your best to stick to your normal sleeping habits, whether you have the entire summer or just a couple weeks off from school or work. Go to bed and wake up at the same times every day, and avoid sleeping too late.

Ending1: [substeps] The best sleeping patterns are forms of sleep-deprivation. If you need to pass the boring summer time, get up on-time and don't stay up as late every night. Ending2: Have a bedtime ritual for yourself with something to look forward to. [substeps] Set an alarm set an hour before bed just in case it goes off in the middle of the night. Ending3: Maintain a regular sleep schedule by going to bed and waking up at the same time each night. [substeps] Too much " sleep " may not be the best idea during the summer months. Ending4: A change in routine can disrupt your workout and eating routines. [substeps] If you sleep too late in the day, you'll be less likely to be physically active and more likely to gain weight.

Answer format: ending1/ending2/ending3/ending4