Hazel Wallace, junior doctor, personal trainer and author of The Food Medic, tells Gillian Russell about the significant impact food can have on our health and explains how she learned to nourish her body and mind through what she puts on her plate. Dr Rangan Chatterjee, from tv's Doctor In The House, describes how his radical approach of getting into people's lives - and homes! - has helped him understand some of the lifestyle issues we face and how best we can make changes to improve our health and happiness. Coach and writer Jackee Holder explains the idea behind Writing With Fabulous Trees, an initiative inspired by trees - actual trees and trees as metaphors - which aims to encourage us to connect with nature, the seasons and our own curiosity.