BBC News Report
UK teenagers are facing a "sexual health crisis" fuelled by alcohol, drugs and risky sexual behaviour, a report warns.
They are "defining their lifestyle" by this behaviour, encouraged by celebrity culture, the Independent Advisory Group on Sexual Health and HIV says.
The increase in sexually-transmitted infections and high teenage pregnancy rates are "disturbing", it says.
The Department of Health said sexual health was among its "top priorities".
The report said recent government campaigns had failed to recognise the link between drink, drugs and sexual health.
The IAG also points out that the UK has the highest rates of teenage pregnancy and sexual infections in Europe.