If you’re trying desperately hard to keep the nasty bugs at bay – especially now everyone’s back at work and school, and the mercury is dropping – you’ll want to know about a really simple, not to mention free, hack medical experts (and teachers) swear by.

The health practice is common in Japan – and appears to prevent upper respiratory tract infections (URTIs).

So, what is it?

Gargling water in the throat a handful of times a day could play a part in helping prevent nasty respiratory infections.

Obviously it’s not foolproof, but one study found people who gargled water at least three times a day were roughly 36% less likely to develop URTIs than those who didn’t.

Even compared to participants who gargled an iodine solution, the group gargling water seemed to come down with

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