Eleanor Tucker: One child in 25 in the UK is born with a genetic disorder, and many of them are extremely rare. Here, families share their stories about living with unusual conditions
Oliver Burkeman: 'When told food would make them stronger, or better at counting or reading, children came to think of it as less tasty, and ate a smaller amount'
Homa Khaleeli: Mothers across the UK celebrated the day with a simultaneous feeding session. But campaigners and health workers say women still don't get enough support
Reports have suggested that growing pains could lead to osteoarthritis. So should children who experience them have blood tests and MRI scans? Luisa Dillner reports
Louise Medus was one of the last babies born with the effects of the drug thalidomide. Brought up in a residential home from infancy, She’s had to fight to overcome her tough start in life and build a family life of her own