Exposure to sunlight even for a brief period in the morning can shift your circadian rhythms. When you get off work, wear sunglasses and a brimmed hat (baseball cap will do), avoid the outside as much as possible, and have blackout curtains in your home. If you wake up at a time of day when there isn't enough sunlight, use a light therapy lamp to convince your brain that it's morning.

Even with those precautions, night shifts can take a toll on your body. Watch your health, make sure you don't end up eating too many fatty foods and gaining weight, and don't hesitate to change jobs if you need to.