How to tell if you have bad breath – and what to do about it

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Let’s cut the hot air. How do you check if you’ve got bad breath? ­According to dentist ­­Dr Mike Heffernan, the easiest way of assessing your breath is by – and you can try this right now – licking the back of your hand, letting the saliva dry, and then, after a minute or so, giving it a smell.