A new study suggests that Britain's teenagers are more concerned with things such as money and their friends rather than the state of their health.
According to research carried out by the British Chiropractic Association (BCA), some 22% of girls admitted that they do not exercise at all outside of school hours.
The research also reveals that only 20% of boys exercise for an additional hour a week on top of activities they engage in at school.
Chiropractor Tim Hutchful, of the BCA, said: "Today's teens have become so engrossed in their social lives and with their appearance that the most important thing - their personal health - seems to have slipped off their agenda.
"Many teenagers are ignoring aches and pains which could lead to back and joint problems in later life."
The study shows that 47% of teenagers do not go and get medical advice when they are in pain or feel unwell and that more than 60% have already experienced some type of backache.
The research found that the main cause of back pain among teenagers in the UK is sleeping in an awkward position (81%), followed by carrying heavy bags (76%), and sitting for long periods of time in the same position (59%).