Doing a ten hour flight from Newark to Honolulu in August anybody have any ideas on dealing with flight length and jet lag?

Stay away from Caffeine and carbonated drinks/alcohol. Get up and stretch often, take a sleeping pill. Get one of those cushioned, U-shaped neck pillows. some call them Bucky's--I never travel without. If you're scheduled to arrive in the daytime, don't go to bed when you get there. Plan an easy first day and adjust to the new time zone. IMO, it's always easier to adjust to the new time, but agony to re-adjust once you get home!

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Don't know if the text search is working too well, but try going to the European board and searching this question....I've answered it in detail many times and there is a book's worth of other info there. (Obviously it's a bigger concern for international travellers vs. US, so less info at this site)

Adjust to the new time as soon as you step on the plane. No alcohol.

Some research done at Cornell suggests strongly that getting out in the sunlight helps to reset the body's internal clock. Unfortunately, that is sometimes hard to do when the flight arrives late in the afternoon.
On flights to Europe, I do better than coming back. Most of the flights from Atlanta leave in the afternoon and fly overnight so that you arrive the next morning and have all day to be outside.
Coming back the flights leave in the afternoon, and arrival is about dark.

My physician suggested trying melatonin to help. He suggest about 1 mg.
It helps you fall asleep and that is an aid in resetting the body's internal clock.

I hav found tylenol pm to be a great sleeping pill on the plane, adn melatonin great for resetting my body clock..