Every Breath, Every Heartbeat. Computers have revolutionised the way people work, shop and communicate and now they are changing the way we can monitor our health. Wearable technology means we can now analyse our lifestyles and monitor our response. Quentin Cooper investigates how science and technology is helping us in the search for new diagnostic signs of ill health and disease, by doing it Ourselves. EMAIL: radioscience@bbc.co.uk Producer Angela Hind