Women in North America have been marching over the use of the word "slut". But why does the word have the power to arouse so much passion? Thousands of women in the US and Canada have marched in ...

Your story on how the brain stores and organises words gave a fascinating glimpse into the neurological underpinning of category formation (5 January, p 10). It reminded me of the distinction, ...

You wake up on a rainy Sunday morning, buzzing with energy. Your 14-year-old son is out playing football in the mud with his friends, so you jump in. From the window, your wife smiles and says, ...