Watch Missy Franklin balance a water bottle on her head as she swims

Missy Franklin won five medals at the London Summer Olympics, proving that she’s one of the top swimmers in the world.

This may be just as impressive.

After a recent high school swim meet, the 17-year-old balanced a water bottle on her forehead as she swam the backstroke. It’s an exercise that helps with head stabilization.

The water bottle sat still on her head the entire length of the pool.

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