How do you stay healthy on a cruise ship? Staying healthy is always important, but it’s even more important while cruising. Even the cleanest cruise ship sees hundreds of thousands of passengers pass through every room on the ship over the course of a year. That’s a lot of opportunity for germs and bacteria to spread. In addition to that, you’ll find new foods, and you’ll be tempted to overextend yourself in other ways in an effort to maximize your fun. While it’s your vacation and a great time to do all the things and try all the foods, you need to remember to temper that with some common sense.…