A corporate high-flyer walks into a room in a suit and sits down to meditate.

It’s not a scene you’d expect at some of Australia’s biggest corporations, but it’s one that’s becoming more common as office workers increasingly suffer “burnout”.

The World Health Organisation officially classified burnout earlier this year as “a syndrome conceptualised as resulting from chronic workplace stress that has not been successfully managed”.

The “occupational phenomenon” is estimated to cost Australian workplaces $10.9 billion a year when you include the toll increased sick days due to poor mental health takes.

Health and high performance expert Edwina Griffin runs Your Energy Evolution and has been working with corporate workplaces to better build up mental health resilience.