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Today on something you should know, some common everyday worries you need not worry about at all. Then there's a lot of emphasis today on positivity and being happy, which may not always be a good thing.

So Mark, don't get me wrong, I'm not anti-happiness. I like being happy. But what happens when we push aside difficult emotions in the service of forced or false positivity? Is there a real psychological cost?

Also, how your dental health can affect your mental health and asteroids and meteors. Could they collide with the earth and cause catastrophe? After all, a lot of meteors come our way.

Every year about 40,000 tons of rock make it to the earth's surface. And in fact most of that actually ends up falling into the ocean, so many of you places that you find me to write.

All this today on something you should know.

I imagine you have a lot of things to worry about. So let me start by taking some of those things off your plate, minor though they may be.

First of all, have you ever been in an elevator and it stops at your floor and it bounces around and feels like it's just going to plummet down the whole shaft?

But that's one thing you can stop worrying about. The elevator won't fall, elevators just don't, there are far too many fail-safes in place.

You ever worry that you'll be struck by lightning if you carry an umbrella in a storm? Well, metal does not attract lightning, so if you get struck it's because you were just in the wrong place at the wrong time, but it has nothing to do with what you're holding in your hand.

You ever have a big, big hairy spider on the wall and you think it's going to jump on you? Well, spiders don't jump. They crawl, except for maybe one or two species that live in the forest.

But if a spider is in your house, he's not jumping. Spiders are never inclined to come after people. And that is something you should know.

So here's an interesting way to look at your life. You live your life as a series of experiences and interactions with others. And while that's going on, your mind is interpreting all of these experiences and interactions. And that's how your life goes.

Some people seem to navigate all of that pretty well. Others of us, less so because our emotions and the things we tell ourselves and our interpretation of what's happening to us gets in the way.

The people who do this really well have what you might call emotional agility. They are able to handle what comes at them and move on. And when you look at your life, I think there are a lot of us who wish we were more agile that we had more emotional agility.

And perhaps we can have more emotional agility. Renowned psychologist Susan David has studied this thoroughly. Susan is an award-winning psychologist to add Harvard Medical School. She is a speaker and a podcast host. She hosts a TED podcast called Checking In With Susan David. And she is author of a very successful book on this topic called Emotional Agility.

I say, Susan, welcome to something you should know. Hi, I'm delighted to be here today.

So let's start by explaining what it means to have emotional agility.

Emotional agility at its most fundamental level is the psychological skills that we need to be healthy with ourselves.

The way we deal with our thoughts, our emotions and our stories so that we can thrive in a complex world. And emotional agility has a number of components to it. The first is the ability to be compassionate with yourself and your emotional experience.

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