Leading doctors are on call to help families who are in desperate need of a health overhaul.
Dr Xand Van Tulleken and Dr Ellie Cannon move in with one family to tackle their persistent health problems. They inspect every part of the families' lives. From their diet, weight, cholesterol, blood pressure, bacteria found in their house and even their pets, before giving them a tough diagnosis and a plan of action to change their bad habits for the better.
Each family demonstrates how our everyday routines and habits are affecting the state of the nation's health. From how regularly you should wash your sheets, to lifting the lid on house bugs - no stone is left unturned in a bid to crack down on the UK's wellbeing.