Thats the promise of a new website, called Jet Lag Rooster, which uses real science to help you conquer jet lag. How does it work? First, the site asks for your flight information, including your departure city and time, as well as your arrival city and time. Then, it asks when you normally go to sleep and wake up when youre home. And whether youd like to start shifting your sleep schedule before you travel, or after you arrive.

Once youve plugged in all the information, the site gives you a custom jet lag plan, which includes an exact day-by-day sleep schedule. But more importantly, the plan also tells you the best times each day to seek as much bright light as possible whether its daylight, or indoor artificial light and also when to avoid light.

Why is that a big deal? Because research shows that bright light is a key factor in regulating our bodys circadian rhythm. Its what wakes us up each morning, and keeps us feeling energized throughout the day. But when we travel, our biological clock is out of sync with the daylight around us. So, we wake up earlier, or stay awake later, than were used to. And thats when jet lag sets in which is linked to everything from fatigue and cognitive problems, to an increased risk of depression, and even trouble going to the bathroom!

So, does Jet Lag Rooster work? Dr. William Kohler directs the Florida Sleep Institute, and he says yes. In fact, Dr. Kohler recommends using tools like Jet Lag Rooster before considering anything else like taking melatonin.