Simplify the following text for a Grade 15 native English-speaking person.
Original: In the post-war years , after the realisation that eugenic ideas had become tainted by the Nazis , Huxley ( 1957 ) coined the term `` transhumanism '' to describe the view that man should better himself through science and technology , possibly including eugenics , but also , importantly , the improvement of the social environment .
Simplified: In 1957 Huxley coined the term `` transhumanism '' to describe the view that man should better himself through science and technology , possibly including eugenics , but also , importantly , the improvement of the social environment .