Water and Breakfast

1. Wake up to water

Imagine not drinking all day at work — no coffee, no water, no diet soda. At the end of an 8-hour shift, you'd be pretty parched. Which is precisely why you should start rehydrating immediately after a full night's slumber. From now on, drink at least 16 ounces of chilled H2O as soon as you rise in the morning. German scientists recently found that doing this boosts metabolism by 24 percent for 90 minutes afterward. (A smaller amount of water had no effect.) What's more, a previous study determined that muscle cells grow faster when they're well hydrated. A general rule of thumb: Guzzle at least a gallon of water over the course of a day.

2. Eat breakfast every day

A University of Massachusetts study showed that men who skip their morning meal are 4 1/2 times more likely to have bulging bellies than those who don't. So within an hour of waking, have a meal or protein shake with at least 250 calories. British researchers found that breakfast size was inversely related to waist size. That is, the larger the morning meal, the leaner the midsection. But keep the meal's size within reason: A 1,480-calorie smoked-sausage scramble at Denny's is really two breakfasts, so cap your intake at 500 calories. For a quick way to fuel up first thing, I like this recipe: Prepare a package of instant oatmeal and mix in a scoop of whey protein powder and 1/2 cup of blueberries.

3. As you eat, review your goals...

Don't worry, I'm not going all Tony Robbins on you. (I don't have enough teeth.) But it's important that you stay aware of your mission. University of Iowa scientists found that people who monitored their diet and exercise goals most frequently were more likely to achieve them than were goal setters who rarely reviewed their objectives.