The authors of the study conclude that giving women the opportunity to give birth at home or in a midwifery unit saves the NHS money and is safe for baby and mother, resulting in fewer expensive interventions.

BBC: Home births more 'cost effective', says Oxford study

The authors of the study in Health Affairs conclude that existing sales taxes may be "too low to cause changes in calorie consumption" affecting the average body mass index, or BMI.

WSJ: Michael Marlow: The Skinny on Anti-Obesity Soda Laws