Be honest. How happy are you?

Americans are the least happy they've been in almost 50 years, according to a recent University of Chicago poll.

There's a lot to be unhappy about these days between an uncertain economy and a lingering pandemic.

But, being unhappy can lead to being unhealthy.

That's why Dr. Joan Neehall says it's time for a happiness reboot. She's a psychologist, an international happiness expert and the author of "Happy is the New Healthy."

If you read one book this year, make it this one.

On this Dying to Ask:

How psychologists define happiness

Simple tweaks to improve your level of happiness almost instantly

Why remaining unhappy is bad for your health