Photo courtesy of Getty Images (Family Features) — Life can sometimes feel a little too jam-packed with work, errands, carpools, cooking dinner and more. When that happens, healthy habits often fall by the wayside in favor of convenience. Fast food can replace home cooked meals and exercise makes way for the television. Registered dietitians and authors Lyssie Lakatos and Tammy Lakatos Shames, who are also known as "The Nutrition Twins," have advice for feeling good and staying healthy despite a busy schedule. Drink up: People often mistake thirst for hunger, prompting them to overeat. Keep seltzer, iced green tea or water with lime in the fridge. The next time you want a nosh between meals, drink a glass first and see what happens. Sneak in exercise: If it feels like too much of a task to get to the gym each day, sneak in exercise wherever you can. Take the stairs instead of the elevator at work or push your kids on the swings for an arm workout. Even if you walk around the neighborhood for 15 minutes, it counts. Just get moving! Simplify, simplify, simplify: Mornings tend to be hectic, so The Nutrition Twins get excited when they can eliminate something from their routine. That's why they love Vitamints. They're a vitamin and mint in one that can be taken anytime, anywhere even without food or water; it's easy to just pop them in your bag or car and go. The twins like the Immune, Energy and Multi for Women varieties. For more information, go to www.Vitamints.com. Bite into some energy: You might think a sugary candy bar from the office vending machine will perk you up, but a healthy, balanced snack will keep you on your toes longer. Make sure your snack has a quality, high-fiber carbohydrate, like fresh fruit, oatmeal or whole-grain crispbread, for long lasting energy and a lean protein, such as a hardboiled egg or Greek yogurt, to help you feel satisfied. The two will work together to keep your energy up and your desire to visit the snack machine down. Sleep tight: Sleep deprivation slows your metabolism down and negatively affects your immune system. When you're busy that's the last thing you need. Set yourself a bedtime that's eight hours before you have to wake up and start getting ready for bed 30 minutes prior to that. The last step is tough, but don't bring your phone or computer to bed with you. Instead, pick up a book to help you relax and drift off to sleep.