The HAPPY London web-based tool will provide the participant with an individualised score for their lifestyle and 10 year CV risk score, based on the modified Framingham score and the UK specific QRisk Score, and provide tailored advice and education on the suboptimal factors. Ideal targets will be set and the information will be updated at 3 and 6 months allowing the participant to view their progress. Weekly emails with brief health and lifestyle advice will be sent to encourage healthier behaviour based on clinical studies or topical issues in the media. Links to social networks, such as Facebook posting and the ability to allow chosen 'buddies' from family or friends to view their progress will aim to further encourage healthier behaviour.