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By Eric Barker
July 14, 2015
IDEAS
Barker is the author of Barking Up The Wrong Tree

Some insights about friendship from research, with links to the studies:

  • Yawning can tell you who your real friends are.
  • More time with friends produces the happiness equivalent of an extra $133,000 a year.

For more on the science behind making new friends and strengthening the friendships you have, click here.

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This piece originally appeared on Barking Up the Wrong Tree.

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