Bypass surgery treats symptoms of coronary heart disease. That happens when a waxy substance called plaque builds up inside the arteries in your heart and blocks blood and oxygen from reaching it. You may feel things like:
85% of the approximate 8.7m population of Bulgaria speak the official language, Bulgarian. 2.5% speak Macedonian, considered in Bulgaria as a dialect of Bulgarian and not as a separate language. Other minority languages include Romani, Turkish, spoken by 9% of the population, and the related languages of Gagauz, Tatar, and Albanian.
Bulgarian language is the Slavic language spoken by the today's Balkan Slavs known by the name Bulgarians. To distinguish it from the language of the Asparuch Bulgars (Bulgar language), it would be better named Slavo-Bulgarian language, as it was refered to by the first writers of the new Bulgarian literature.