Overthinking, oversharing, and — well, a few celebrities to boot. That’s what you’ll find in this week’s Psychology Around the Net.

When to Think Less About Your Choices: Thinking too much about something could mean you’re focusing on only a few variables instead of blending a more holistic, emotional view into the situation.

The Psychology of Oversharing Facebook Couples: We all have one or three of these couples within our Facebook feeds. Now find out the psychology behind them.

Pharrell’s ‘Happy’ is a Rare Bright Spot in Track Sales This Year: Admit it: You can’t help but feel a little boost in mood when you hear this song! Well, according to Billboard it’s also bucking the downward trend record sales have seen lately.

The Complex Relationship Between Happiness and Motivation: What drives people to do their best work? Is it happiness, or something else?

Demi Lovato Is Using Her Own Bipolar Disorder to Educate Others About Mental Health: We love it when celebrities use their big names for big good, and that’s exactly what singer Demi Lovato is doing with her own mental illness experiences.

How To Tell If Your Anxiety Is Normal (And What To Do If It’s Not): Certain levels of anxiety are normal, but what can you do when that anxiety strikes?