Crossing more than 3 time zones may cause jet lag or disrupt your body’s internal clock. Try preventing jet lag by anticipating the change and stretching when you can, among other strategies.

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Let’s say you wanted to fly from Tokyo to Las Vegas to catch a sporting event, and then turn around and fly back across the Pacific to Australia. No one would recommend this punishing schedule from a ...

If you’ve ever flown across several time zones — from the East Coast to the West Coast, for example, or from the United States to Europe — you’re probably familiar with jet lag. It’s the feeling of ...