When traveling from one time zone to another, eat pasta the night before your flight—carbohydrates boost your brain’s supply of the sleep-inducing neurotransmitter serotonin.

Skip in-flight meals. Eating is one of the ways your body sets its internal clock, and airlines generally serve meals according to the time zone from which you took off, not the one where you will land. After you land, order steak or eggs—foods that are rich in protein prompt your brain to produce neurochemicals that increase alertness.

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