TED playlists are collections of talks around a topic, built for you in a thoughtful sequence to illuminate ideas in context. This weekend, two new playlists are available: “What’s wrong with what we eat?” and “Our brains: predictably irrational” — and a bonus! A TED primer of 11 classic TED Talks. Think of it as “TED 101.”

Our brains: predictably irrational
We humans are amazing specimens of reason, but our brains are also remarkably buggy. We make absurd choices, behave inconsistently, and are constantly irrational. Watch 11 talks on just how fallible we can be.

What’s wrong with what we eat?
Are you eating the wrong stuff? What exactly is the junk you’re putting in your body? What about people who don’t even have enough to eat? 5 talks on our problematic eating habits.