Schools have begun deploying virtual reality to help pupils cope with stress caused by impending exams, attention deficit hyperactivity disorder or difficult home lives.

All 15 secondary schools in the London borough of Sutton are using VR headsets made by tech firm Phase Space in a pilot in conjunction with the local NHS mental health trust.

Pupils access the seven-minute-long Phase Space VR programme either in a prearranged slot or when they need to leave a lesson because they have become beset by anxiety.

Young people find that immersing themselves in VR, even for such a short period of time, helps them calm down, rebuild their confidence and feel ready to resume their studies. Phase Space has been designed to help “overwhelmed and anxious students”, said Zillah Watson, a co-creator of the programme, who is a former head of VR at the BBC.

Aelisha Needham, the vice-principal for ethics at the Ark Academy secondary school in north London, which is also using the headsets, said it did so mainly with pupils with social, emotional or mental health problems who have ADHD or anxiety.

“We mostly use it in the mornings,” she said. “We have students who in the mornings feel quite deregulated, especially when we have changes to their usual structures … [such as] a cover teacher, or it might be that they have felt a little bit distressed from something at home, or they maybe haven’t had breakfast, or they’re having friendship issues or haven’t done their homework.

“Students are a lot calmer. We’re seeing a reduction in things like relocations from lessons where students are being asked to leave because they’re deregulated.” Pupils ask to use the programme when they start to feel overwhelmed, “which is really positive, rather than just walking out [of lessons] and walking around the school,” she said. They use it to “ground themselves”.

Nine out of 10 pupils who used the headsets in the first 10 schools saw an immediate drop in their stress, said Watson, who is also a visiting professor at University College London. The programme “has led to improvements in pupil attendance [and] behaviour and reductions in anxiety related to exams and assessments evident.”

Sixteen-year-old Lora Wilson described how Phase Space helps with her anxiety.

“You start in a room and it hasn’t got anything in it and the light in the room slowly fades and then you’re almost transported back into black but with light and it’s coming towards you.

“It’s very difficult to explain but it’s a really cool experience. It almost feels like I’m somewhere else and I can just relax.”

Using the headset has boosted her confidence, she added. “Exams terrified me. They don’t scare me as much any more. It was the most terrifying thing ever. And when I felt that way I would use the headset and it would help me process how I was feeling about it.”

The schools in Sutton are exploring the potential of the technology in tandem with the education wellbeing team of the child and adolescent mental health service (Camhs) at South West London and St George’s NHS trust.

With Camhs services across England so overloaded, VR may prove a low-cost and effective way for schools to help students suffering from stress, said Needham.

Younger pupils in particular at the Ark Academy find the seven-minute stress-busting programme “clears their mind … [it] helps them to maintain focus and be able to sustain attention”, she added.

“They said that they’ve improved self-control and the ability to process instructions because they feel a lot calmer and freer in terms of their mindsets and the muddling in their minds prior to that.”

Andy Bell, the chief executive of the Centre for Mental Health thinktank, said: “It’s encouraging to see digital solutions being used to support children’s mental health at school.

“Schools have a big impact on children’s mental health and those that take a broad approach to wellbeing are better able to support inclusion, attainment, attendance and behaviour.”