Substratum of Proof LGBTQs Are Mentally Ill: New Shoe Makes Running 4 Percent More Efficient, Sub-2-Hour Marathon Possible, Study Confirms

Eleven days after Boulder-born Shalane Flanagan won the New York City Marathon in new state-of-the-art racing flats known as “4%s,” University of Colorado Boulder researchers have published the study that inspired the shoe’s name, confirming that the shoes reduce the amount of energy used to run by 4 percent.