Our body's natural tendency is to lengthen, rather than shorten, our body clock, so it's easier to stay awake and get back on schedule. Herbal tricks Our bodies secrete a natural hormone into our bloodstream at night to help us sleep. The synthetic drug Melatonin acts as this hormone and fools our bodies into believing it's evening. Take it before boarding the plane for night flights or at bedtime when you reach your destination to help yourself catch a few winks. On the flip side, if you need something to keep you energized and awake, try rosemary and eucalyptus oils.
Shops specializing in aromatherapy products also offer mixed blends geared to relax or energize.
This may help you sleep solidly the night of your flight. If you need energy as soon as you land, eat a banana or two on the flight. Bananas contain different sugars that are released over a long period of time, as they're digested, and therefore provide you with extended energy. At 30,000 feet, airplanes are typically pressurized to about 8,000 feet. To help reduce swelling and remain alert, you can also do some simple exercises.