When you're hungry, your brain typically tricks you into thinking you need sugar — don't listen! It might be easy to grab a candy bar, but it's only going to sate you temporarily (and you'll likely have a crash feeling not too shortly after you eat it). Opt for something that's more nutritionally complex like yogurt or a hard-boiled egg, or a piece of fruit (with some peanut butter!) if you're really craving sweets. The fiber in fruit keeps you fuller longer, too.