Etymologically, 'opinion' has at least one foot in the idea of being able to think independently, of owning one's thoughts, and the other in the idea of choice, of being able to have preferences, judge something one way or another, or take one of several positions on a controversial issue. Having opinions implies being cognitively autonomous, independent, but also somewhat unpredictable. Althou...

eDITORIaLS Food additives and hyperactivity Evidence supports a trial period of eliminating colourings and preservatives from the diet Whether preservatives and colourings cause or exacerbate hyperactive behaviours is an important question for many paediatricians and parents. A recent randomised placebo controlled trial in 297 children aged 3-9 years provides evidence of increased hyperactive b...