6. Party smarter. One of the biggest challenges for women in their twenties is balancing a social life with a healthy lifestyle, Sopov says. “Whether it be dating, nights out with friends, or work happy hours, there is always alcohol involved,” she says. To keep your liquid calorie intake in check, drink a glass of water before and after a cocktail, choose a light beer or a moderate amount of alcohol, and skip drinks mixed with soft drinks, suggests the Academy of Nutrition and Dietetics.
You know not to crush half a pizza before jumping in bed, but even munching on something healthy-ish at night can throw off your calorie-burning momentum. Ideally, while you're sleeping, you want your body to burn its current fat storages (read: that pesky middle-jiggle) for fuel as opposed to whatever you ate as a midnight snack. Make sure to fill up at dinner every night, and then banish yourself from the kitchen at least two hours before bed.
Don’t let extra hours lounging in bed stand between you and a flatter belly. While getting enough sleep can help boost your metabolic rate, sleeping in may undo any benefit you’d enjoy from catching a few extra winks. One study reveals that late sleepers who snoozed past 10:45 in the morning ate nearly 250 more calories over the course of the day, despite eating half as many fruits and vegetables as their early bird counterparts. Even worse, they chowed down on more salty, sugary, and trans fat-laden fast food than those who woke up earlier. If you happen to head out of the house early, you’re in for an additional metabolic boost; researchers at Northwestern University have found that people exposed to just a short period of early morning sunlight had lower BMIs than their late-waking counterparts.