How Loneliness can Infect Social Networks

Last week, I've listened to a VOA's report about health in here. I made the summary of that report.

Here's what I can catch from the recording

Loneliness is one of health problems. Loneliness can spread really fast between the close friends; just like the infections. Obesity, happiness and the ability to stop smoking also can spread really fast among the social groups. Study found that loneliness more likely to happen between next-door neighbors who were close friends but now spend less time together. And also, loneliness often occur among women than men. It said that people who have a lonely friend can add several days with lonely feeling in a year. But if they can add some friends, it can decrease the days with lonely feeling. People with loneliness are hard to believe on others. And it make them more difficult to  make friends.