Complex sentence: Tu Youyou (born 30 December 1930) is a Chinese medical scientist, pharmaceutical chemist, and educator best known for discovering artemisinin (also known as "qinghaosu") and dihydroartemisinin, used to treat malaria, which saved millions of lives.
Split into simpler sentences: Tu Youyou (born 30 December 1930) is a Chinese medical scientist, pharmaceutical chemist, and educator. She is best known for discovering artemisinin (also known as "qinghaosu") and dihydroartemisinin, used to treat malaria, which saved millions of lives.