Teenagers often live in the 'here and now' and rarely think about the long-term consequences of their actions - hitting 30 seems a lifetime away. Like so many things, the implications of what they eat and how active they are has not yet hit home.
Around 3.2million people have Type 2 diabetes and there are 11.5million at high risk of it.
Over seven million people across the UK are living with the burden of cardiovascular disease - and every day more than 100 people will have their lives cut short by heart disease and stroke.
TAKE a look round the supermarket, your office, the train or even a traffic jam today: You might be surprised to know that of the people you can see, one in 17 has been diagnosed with diabetes. Plus another one or two have it but don't know it.
The concept of mHealth is nothing new. Smartphones, apps and wearable devices are already successfully helping people to quit smoking, lose weight, manage their diabetes and track activity, such as running and walking.