A new survey has found that the Internet has become an obsession for many Americans, with the majority of U.S. adults feeling they cannot go for a week without going online and one in three giving up friends and sex for the Web.

The online survey, conducted by advertising agency JWT, asked 1,011 American adults how long they would feel OK without going on the Web, to which 15 percent said a just a day or less, 21 percent said a couple of days and another 19 percent said a few days.

“It is taking away from offline activities, among them having sex, socializing face-to-face, watching TV and reading newspapers and magazines. It cuts into that share,” said JWT’s Ann Mack. “I don’t suppose their partners are too pleased about it.”

Ouch!

Report Highlights:

• 28 percent admitted spending less time socializing face-to-face with peers because of the amount of time they spend online.
• 20 percent said they spend less time having sex because they are online.
• The Internet won out over cell phones and television in a question asking which device people couldn’t go without.