Familial hypercholesterolaemia (or FH for short) is an inherited condition which can lead to extremely high cholesterol levels. It's passed down through families and without treatment, FH can lead to heart disease at a very young age.
But it can be treated with medicines and a healthy lifestyle.
The key is diagnosis.
A pilot scheme supported by the Innovation Agency is aiming to help increase the number of cases of FH, detected at an early age.
Dr Sue Kemsley, a GP in Cheshire, is leading the parent-child screening programme for FH and has been explaining more about how it works and the significant difference it could make.