A quarter of UK motorists have admitted to driving while tired in the last six months.
Of these, 42% opted to carry on behind the wheel rather than take a break, a survey of 2,000 adults by insurance company esure found.
Carrying on while fatigued was worst among 18 to 34-year-old drivers, while Londoners were the ones most likely to continue when tired. Men (48%) were more likely than women (32%) to stay at the wheel when tired.
Andrew Lowe, head of motor at esure, said: 'The research presented alarming findings in the number of motorists that ignore the danger of fatigue while driving. This is a particular concern at this time of year for people driving longer distances or unsociable hours to holiday destinations or the airport.'
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here