London: Heavy smartphone use during midnight hours is destroying intimacy in relationships, leading to break-ups, cheating and divorce, says a study.
As the quality of our physical connections gets diluted, people expect less and forget what real romance is, it added.
Researchers from the Oxford University in Britain studied 24,000 married European couples.
They found a direct link between use of social networking sites and marital satisfaction.
"The more couples read about others' exciting lives on social media, the more likely they were to view their own with disappointment and disdain," the authors noted.
In a separate study, researchers from the University of Missouri in the US interviewed hundreds of Facebook users aged between 18 and 82.
They found as the use of social media increased with the help of smartphones past midnight, actual intimacy suffered.
Spotted: Sangeeta Bijlani at store launch in Bandra
Photos: Ajay Devgn and his girl gang promote 'Shivaay'
Irfan Pathan's birthday: Popular brother duos in international cricket
Kumar Sangakkara birthday: Batsmen who hit the most Test double tons
Birthday special: 21 actresses who married businessmen