Real-Life Social Network Stays Same Size
You replace half of old friends with new ones every 7 years: study
By Ambreen Ali,  Newser User
Posted Jun 3, 2009 12:57 PM CDT
Half of friends are dropped every seven years, making room for new ones, the research suggests.   (Shutter stock)

(Newser) – It might not be so on Facebook, but the size of people’s actual social networks stays about the same throughout life, LiveScience reports. Most people replace half their friends every 7 years, a survey of 1,000 people finds. The study—which also notes that people often make new friends through familiar means—contradicts previous research that said social networks are shrinking.