Yeah, jet lag is real. The science behind it is strong. It's much worse eastbound than westbound, and particularly bad when you spend the night on the plane. Unfortunately, that's the way nearly all European-bound flights work. You board the plane in the US in the evening, arrive in Europe the following morning,and then spend the rest of the day in walking zoomie mode. If I understand correctly, that's what the Bears did. However, London is do-able from Chicago with a day-long flight, leaving in the morning and arriving in the UK in the late evening. If you fly during the day and don't spend the night on the plane, your circadian rhythm is less disturbed, with the impact of jet lag being less severe & shorter. The Bears could have flown during the day Thursday. It would have cost them their Thursday practice, but probably would have made their Friday practice less of a walking zoombie type of thing. Again, not the sole reason they weren't ready to play. But its sort of silly to maintain that it wasn't a factor...
