That's what we have covered here: it is nothing difficult or complicated.

And remember keep your own hands clean before you eat.

Some of the easiest places to get ill are where there are large numbers of tourists and the locals have adapted by offering western type food and/or a lot of food is saved, stored and re-heated. You might never have a problem in India, eating Indian food, but suffer in Nepal eating western style food.

From a where you will stay to how you will get around.... The art of travel is about the most pretentious way of saying this.

If you have done it before, all this will sound pretty boring and obvious, like someone telling you how to get up and go to college or work.

You will probably be at a loss as to what has caused it and you just have to wait it out.

Its effects are horrible, but it doesn't last long in most cases.

The bacteria responsible for diarrhoea and related symptoms normally die after 36 hours.

If it lasts longer than this, chances are you have nothing serious, but something treatable, for instance giardia (indicated by severe flatulence, stomach cramps and sulphurous belching) which is cured by Flagyl (Metronidazole) - see a pharmacist.

It is about the simple things you may deal with on a day to day basis (especially if you are heading to poorer or developing countries).