An curved arrow pointing right. Twenty-two-year-old Brookelynn Bley takes hula hooping to a whole new level. Bley only picked up hula hooping three years ago, but she's already a total beast at it.

“What keeps a hula hoop up against gravity?” And: “Are some body types better for hula hooping than others?” Researchers of the study, published in the Jan. 7 issue of Proceedings of the ...

The gyrations of hoop-slinging robots reveal that hourglass-shaped objects are best at keeping a hoop in the air.