Dads matter. You know it, I know it and – increasingly – science proves it. The latest study to show that hands-on fathering reaps rich rewards for our children comes in the arena of childhood obesity. As you probably know, childhood obesity is reaching epidemic levels. Professor Russell Viner of the Royal College of Paediatrics and Child Health has claimed that “We are entering a state of emergency” when it comes to childhood obesity, citing statistics which show that 22% of…