Individuals have different experiences. On my first trip to England in 1988, when I was 22, I experienced jet lag. I was traveling with a group and groggy when we got on the bus to go to London. Then, the next thing I knew, I was waking up in the middle of London. I had taken at least a 60-minute nap. I remember our British tour guide commenting that I "had a bit of jet lag." I had taken no precautions on this trip. On subsequent trips with preparation, I still struggled with jet lag.