Watch these recommended TED-Ed Lessons:

3 tips to boost your confidence
When faced with a big challenge where potential failure seems to lurk at every corner, you’ve probably heard the advice, “Be more confident!” But where does confidence come from, and how can you get more of it? Here are three easy tips to boost your confidence.

A brief history of melancholy
If you are a living, breathing human being, chances are you have felt sad at least a few times in your life. But what exactly is melancholy, and what (if anything) should we do about it? Courtney Stephens details our still-evolving understanding of sadness -- and even makes a case for its usefulness.

What is imposter syndrome and how can you combat it?
Even after writing eleven books and winning several awards, Maya Angelou couldn’t escape the doubt that she hadn’t earned her accomplishments. This feeling of fraudulence is extremely common. Why can’t so many of us shake feelings that our ideas and skills aren’t worthy of others’ attention? Elizabeth Cox describes the psychology behind the imposter syndrome, and what you can do to combat it.

Who am I? A philosophical inquiry
Throughout the history of mankind, the subject of identity has sent poets to the blank page, philosophers to the agora and seekers to the oracles. These murky waters of abstract thinking are tricky to navigate, so it’s probably fitting that to demonstrate the complexity, the Greek historian Plutarch used the story of a ship. Amy Adkins illuminates Plutarch’s Ship of Theseus.