The study was conducted by CyberCompare.net as part of research into the digital habits of people in Britain.
"Technology is infiltrating pretty much every element of everyday life now, even our sex lives it seems," Kimberley Shapley, lead researcher at CyberCompare.net, was quoted as saying.
A total of 1,612 men and women aged over 18 took part in the research.
Almost a fifth of people in long-distance relationships said they use digital encounters to keep the passion alive.
