A 28-year-old woman from London has broken a world record by contorting her body into a grueling pose known as the “Marinelli bend” — and using her mouth to support her body weight for 33 seconds, the Daily Telegraph reported.

Iona Luvsandorj, a contortionist who performs all over the world, said the pose is “not painful.”

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“Do not try this at home,” Luvsandorj said.

The Marinelli pose is an overturned backbend. The entire body is supported by the mouth by holding onto a small post between the gums.

Click here to read more from the Daily Telegraph.