In a park in London, dozens of young people gathered, waited for a signal, and then screamed as loudly as they could, all to help release stress.

This idea, called scream therapy, is becoming very popular on TikTok. It started in the United States and has now spread to Britain.

“It was very therapeutic,” said 23-year-old Rebekah Drakes after she screamed at the top of Parliament Hill on Hampstead Heath, in north London.

She and others—mostly in their 20s—joined a “Scream Club” event on Saturday.

“I feel like you don’t realize how much you’re holding in until you can let it all out,” said Drakes, who works as a bartender.

Mona Sharif organized the event after seeing videos on TikTok of people gathering to scream in the United States.

“I made a TikTok saying that London should do one,” she said. “From that video, I made a group chat after I got some attention, views, and likes.”

“A thousand people joined the group chat in three days,” she added.

Sharif counted to three, and then everyone screamed while filming themselves on their phones. The noise surprised people walking by.

A space to scream

“It’s kind of like group therapy,” she said.

In this case, “people are letting out frustrations that they can’t really talk about.”

Julia Dewit, a 29-year-old teacher, liked that many women joined in.

“There’s a stigma around women being told to stay calm and cool under pressure,” she said.

“I think that today, talking about how we feel and mental health is much more common than it used to be, and that’s a really good thing.”

A YouGov survey published last month said that two-thirds of young adults aged 16 to 25 in Britain are dealing with mental health problems, often related to school or money issues.

Before the group scream, people took turns standing on a bench to talk about their loneliness or feeling like they don’t fit in.

Some talked about news events that made them angry, and the crowd cheered in support.

“If you follow international political news, it can be very devastating,” said 19-year-old student Rifa Uddin.

“I really need a space like this where people can just scream and go crazy.”

So go scream to your heart’s delight, just not at anybody in particular.