Our friendships and close relationships–both how many we have, and how positive they are–are one of the best predictors of our happiness. But in the hustle and bustle of everyday life, our friends often get short-shrift.

Take Action: Make time to call a friend just to catch up. Better yet, schedule time to do this regularly, preferably at the same time on the same day each week. Odds are that you’ll feel happier when you get off the phone, and you’ll be shoring up your friendships for the long-haul.