Those taking part in the study will be children under 16 who are going through puberty.

The chancellor faces her toughest challenge yet in a Budget that will define the government's future, writes Laura Kuenssberg.

Shumeet Banerji, an ex-management consultant, leaves the BBC board and criticises its governance.

More than half of the 49 saplings grown from the illegally felled tree will be planted in a week.

The publisher of the Daily Mail says it is in talks to buy the Daily and Sunday Telegraph for £500m.

Only a fraction of fraud reports result in a prosecution, new analysis suggests.