We all have our indulgences: A big bowl of chocolate ice cream after a long, stressful day. That can of Coke with a few slices of pizza on a Friday night. A burger and fries at that new restaurant ...

Each year when school returns for a new term, parents see their children coming home with all sorts of illnesses. Gastro and flu are consistently high up on the list. But how can we tell if a sore ...