In Greek mythology, the many-headed beast Hydra had such severe halitosis that the stench of its breath was deadly to anyone who smelled it. Thankfully, our morning breath might not be that pungent – although eating onions or garlic can put some people in competition with the Hydra.
Halitosis has many causes (aside from poor oral hygiene) and can indicate problems with the gut, the sinuses and even the bloodstream. In fact, breath samples can even be tested to make formal diagnoses of health conditions.
