Load up on the right vitamins: Want to reduce your risk of getting sick even before you touch down.
Add some probiotics to your routine: While you can't always control the number of illness-causing bacteria.
Start taking regular walks before you leave: If you know you'll be doing a lot of walking on your trip, gradually.
First-aid know-how: Another wise move is to sign up for a first-aid class to brush up on or expand.
Skip the cigarettes: Multiple studies confirm that cigarette smoking weakens the immune system.
Break in your shoes before you go: It's best to break in new shoes before traveling. Sometimes shoes seem comfortable.
Pack essentials: such as pain relievers, medications, and insect repellentIf you're on prescription medication, make sure you bring.
Sanitize surfaces: If you want to avoid getting sick from the germs left behind by other passengers.
Stay hydrated on the plane: That stale airplane air can quickly leave a person feeling dehydrated.
Get up periodically throughout your flight: If you're in for a 10-hour flight before you reach your destination.
Keep your lips moisturized: As airplane air is drying, make sure you apply lip balm in flight. Dry.
Skip the booze on your flight: Though it's tempting to get your vacation started, alcohol only contributes to dehydration.
Ask for help with your bags: If you're traveling with heavy bags, get a hand to avoid injuring yourself.
Avoid ice: If you're going somewhere with low water quality, make sure to order your drinks without ice.