In rural Bosnia and Herzegovina, 80-year-old, Hava Celebic or ‘nana Hava’ as she is known locally, claims to be the only person in the world who heals with their tongue. The frail old woman uses her tongue to remove pieces of lead, iron, coal, sawdust and glass from eyeballs after sterilising her mouth with alcohol.Patients will raise their eyelid for nana Hava to begin licking in search of a foreign body. Hava said: "I learned this from a woman who was also called Hava. Unfortunately I can not pass this to my descendants, because my children are too disgusted to put their tongue on someone's eye."