For most humans, Zlata's level of flexiblity is simply not possible. The Russian contortionist has trained in extreme gymnastics since the age of 14, but her superhuman pliability cannot be entirely attributed to her acquired skills. Zlata has a rare condition called Ehlers–Danlos syndrome:
"In the skin, muscles, ligaments, blood vessels, and visceral organs collagen plays a very significant role and with increased elasticity, secondary to abnormal collagen, pathology results. Depending on the individual mutation, the severity of the syndrome can vary from mild to life-threatening."
In short, Zlata has a rubber band body, which may or may not be detrimental to her health.

Quoted from the video below, "In the world of contortionism you're either a front bender or a back bender. Zlata is both." Enough said. Enjoy (boys). Or wince, as most normal human beings would.
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