I've done the JFK to LHR route before, where you get to spend the day on the plane and sleep in a real bed in London that night. It's also awesome to wake up early (5am) in NY in the days before you ...
I'm always feeling a bit unwell during and after long haul flights. I lose my appetite, can't sleep in the plane, food has no taste no matter what. However, I'm pretty sure it's not the flying itself, ...
From my personal anecdotal experience, I've found it worse when travelling east around the globe. I also tend to stay awake most if not all of the flight, so sleeping time doesn't tend to matter as ...