Sexism is any expression (by an act, gesture, image or word) based on the idea that some people (usually women) are inferior because of their gender. Sexism is harmful because it produces feelings of inferiority, worthlessness and self-censorship. It can also induce negative changes in behaviour and a deterioration in health. Sexism lies at the root of gender inequality, and while individual acts of sexism may seem harmless, they cumulatively create a climate of intimidation, fear and insecurity. This is why the Council of Europe has decided to adopt a Recommendation to prevent and combat sexism.