Actors have a saying: You don't get 100 per cent of the parts you don't audition for. If you're an artistic type, or a writerly type, or even just someone who's looking for a job, you may have found rejections to be so painful that you've just stopped applying for things. Social media and streaming TV is so soothing - why would you put yourself out there for stuff you aren't going to get anyway?

Interesting news out of the Netherlands: A team of researchers tracked nearly 85,000 women through their pregnancies and beyond, and found that self-esteem in pregnant women and new mothers fluctuates: It dips during the 30th week of pregnancy, rises until the child is six months old, and then declines for at least the next two and a half years. The good news is that maternal self-esteem eventually did recover: When the researchers followed the women for subsequent pregnancies, they found that the women had returned to their previous level of self-esteem.

Feeling like you don't measure up to those around you also makes you think you don't belong, like you're an impostor. A simple change in mindset can combat that feeling and remind you that we're all -- even your heroes -- human.

We've all seen couples who flood our timelines with photos of themselves on vacation, out to dinner, walking around, at home, doing nothing....you get the drift. A few aren't an issue, but when it gets obsessive, there may be a psychological reason at play, and this Science of Us video explains why.

Have you ever tried hard to stop caring what other people think about you? Hoped that doing so would free you from social pain and self-doubt once-and-for-all? It rarely works and here's why.