【情報構造】逆接語→筆者の主張→主張追加

Environmental hormones are not real hormones, but chemical substances that resemble hormones. They enter the body and deceive it into accepting them as hormones.

①逆接語の後は通常は筆者のいいたいこと
②逆接語の前後で+-イメージは逆転

【等位接続詞】
but/yet/and yet

【従属接続詞】
although/though/while/whereas/even if/even though/as
ex)Young as he is,
Hard as he studied,
Child as he was,

・Although
Although anecdotal evidence on higher accident rates for dark-coloured vehicles, few studies have empirically established a strong casual link between colour and accident risk.
暗い色の車の方が事故率が高いという伝聞的根拠はあるものの色と事故リスクの強い因果関係を経験的に確立した研究はほとんどありません

【副詞、副詞句】
however/though/nevertheless/instead/on the contrary/contrariwise/conversely/oppositely/still/all the same/all the same time

【前置詞】
despite/in spite of/for all

【追加】
Even more importantly,