survey on facebookResearchers from University of Montreal came up with a shocking survey about the negative effect of having too many friends on Facebook. They found teenagers with more than 300 friends have increased levels of cortisol, a stress hormone.

There more the friends, the higher will be cortisol levels and the bigger will be the chances of falling in depression. The researchers recruited 88 participants aged 12-17 years who were asked about their Facebook use, number of friends and studied their behaviour.

The researchers however say the effect of the depression will not be seen immediately but it will take some years to surface. This is one of the first studies in the emerging field of cyberpsychology which focuses on the effects of Facebook on well-being.