The study

Better with a friend

People who sent a friend weekly updates on their goals got 78% further than people who kept their goals to themselves.

Goal achievement after 4 weeks
4.28
7.6
On your ownGoals kept in your head
With a friendWeekly updates to a friend

Average score out of 10

Dr. Gail Matthews at Dominican University of California followed 149 people working on a goal for 4 weeks. The ones who wrote their goals down and sent a friend a progress update every week scored 7.6 out of 10. The ones who only thought about their goals scored 4.28.

Read the study summary