Can't understand your teenager's behavior? Psychologists have tips to offer

Slamming doors, throwing tantrums, unexpected crying, and one-sided conversations at the dinner table. If these are common occurrences in your household, you are probably raising a teenager.

Teenagers are often perceived as entitled brats with little or no control over their emotions. And although many parents may see this as unnecessary angst or rebellion, these could be signs of the child struggling with anxiety.

"It's so overwhelming and so powerful that you're really just stuck in the storm. The anxiety has taken control over your mind and body," said Natasha Riard, lecturer in clinical psychology and psychology clinic manager at James Cook University Singapore.

"The person who is experiencing anxiety wants it to stop, and the parent watching it wants to stop it. But once the panic attack starts, it's like a train that has left the station, and it's only going to stop when it reaches the next one. The journey between those stations is the experience of the attack," Riard explained.

Parents might not always know how to help their children when they are feeling anxious or are on the brink of an anxiety attack, and methods that worked in the past may no longer be useful as teenagers face new challenges, psychologists said.

Here's how parents can better perceive signs of anxiety among their kids — and tips for them to help their young ones.

Regardless of age, people who are feeling anxious will have a fight, flight, freeze or fawn reaction to stressful situations, according to psychologists.

They told CNBC that the most common reactions are flight and freeze, where one shows signs of panic and will start crying or shaking, or even freeze up and dissociate from the matter by becoming silent and shutting off.

"When you're having a