After eight years or so in comedy, Josh Androsky has developed a theory.

"There would be no comedy if there wasn't anger," Androsky said. "The world makes you angry. Especially now."

He has a point. Gallup has been measuring whether people are satisfied or dissatisfied with the way things are going since 1979.

This month, just 28 percent of Americans are satisfied, down from a high of 70 percent in the months following 9/11, but up from just 7 percent when the financial crisis hit.

The study also revealed white Americans are the angrier than black Americans, who tend to be more optimistic about the future of the country.

"Anger is this surface level emotion," 9NEWS psychologist Dr. Max Wachtel said. "It's something that's very easy to access. It can hit us very quickly, but it's just kind of like, on the top. Usually there is something else underneath that's explaining the anger."

An NBC News/Esquire survey sheds some light on where we started this year.

The report from January shows half of Americans were angrier by the end of 2015 than in 2014.

Two possible reasons for this: the perception that the American dream is dead, our role in the world has weakened and race relations have worsened.

Anger is contagious.

Wachtel says anger hurts our health, but it's not always a negative emotion.

Anger can spur people to action.

An appropriate expression of anger can be healthy

"What I'm focusing on mostly is just joy," Androsky said. "Comedy is the way of taking this anger that's directed at you from the world and turning it into something that you can cope with."

For Androsky, anger is inspiration, and comedy is the antidote.

Maybe we could all use a stronger dose.

Do you think you're angrier? Take our poll below.

Can't see the poll? Click here