Complex sentence: Some researchers claim that just about 35% of Turkish women cover their heads; even though that is a low number for a mostly muslim country, many women wear a cultural headscarf that is not a symbol of the Quran.
Split into simpler sentences: Some researchers claim that just about 35% of Turkish women cover their heads; even though that is a low number for a mostly Muslim country. Many women wear a headscarf for cultural reasons that is not a symbol of the Quran.