Don't get voted off Holiday Island. These tips will keep you in the game.

Welcome to another episode of Survivor: Holiday Edition. This season, our heroine has dodged killer crowds at the mall, shimmied her way through countless parties and has been crushed by a mountain of wrapping paper. How does she manage to stay on Holiday Island with a smile on her cold- and flu-free face?

Immunity is on her side thanks to tricks like these:

• Make a pact with probiotics. Friendly bacteria in yogurt and fermented foods help ward off everything from tummy troubles to colds. We get our daily dose with GoodBelly Plus, a juice "shot" that's loaded with 20 billion healthy bacteria plus 17 vitamins and minerals.
• Sweat it out. Another reason to stick with your Happy Healthidays Fitness Routine: When you get moving, your body releases exercise-induced antibodies.
• Tune in. Research from Harvard University found that patients who listened to classical piano sonatas had lower blood pressure than those who didn't listen to music. They also had a 50% spike in pituitary growth hormone, which stimulates healing. Download a new tune or trade mixes with friends.
• Guzzle, guzzle. You may not be on a desert island, but that doesn't mean you should skip your 8 glasses of water daily. When you're parched, the membranes in your nose and throat and are more likely to get infected. Can't stomach plain H20? Try unsweetened tea, coffee or calorie-free flavored seltzer.

The tribe has spoken.