A Scottish woman who shed more than half her body weight has credited small, straightforward lifestyle changes with delivering a remarkable transformation - and not skinny jabs. Karen Heffernan, who lives just outside Glasgow, took action following what she described as 'a bit of a health scare and a bit of a difficult conversation with a surgeon.' Rather than counting calories, she turned to a fitness app to guide her through a series of gradual, incremental changes and, over roughly 18 months,