An average bloke devotes a good 43 minutes a day eyeing up 10 different girls, researchers have revealed.
And this adds up to a year in a lifetime.
As far as the ladies are concerned, well, they ogle up to six men for 20 minutes a day - or six months of their lives, reports The Sun.
Mark Ireland, of Kodak Lens Vision Centres, which carried out the poll, said: "Men are renowned for looking at women but it's interesting to see just how long they spend doing it.
"A year of your life is a long time to spend with your eyes fixed on the opposite sex."
Researchers assumed a person's life of ogling takes place between the ages of 18 and 50.
The poll of 3,000 Britons revealed that most people felt flattered at being gazed at, but 16 per cent of women said it made them uncomfortable, and 20 per cent said it embarrassed them.
Most women said it was a fella's sexy eyes that first drew their gaze. With men it was a girl's figure.