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.
Most Bulgarians live in Bulgaria, where they number around 6 million, constituting 85% of the population. There are significant Bulgarian minorities in Serbia, Turkey, Albania, Romania (Banat Bulgarians), as well as in Ukraine and Moldova (see Bessarabian Bulgarians). Many Bulgarians also live in the diaspora, which is formed by representatives and descendants of the old (before 1989) and new (after 1989) emigration.