Alan Carpenter: How a brush with death inspired a new lifestyle

It could all end in a heartbeat. Sometimes life itself, with its unpredictable path, can be the biggest motivator to change us for the better. Take Alan Carpenter. He was a fit 66-year-old, enjoying a hike on the US Pacific Crest, when his life suddenly imploded. A dramatic fall led to a stay in hospital and a long period of recuperation. It also prompted him to reassess his state of health - not only physical, but his mental and emotional wellbeing. It led to years of researc...