In every lifetime, a scientific discovery changes the way humans view the world. From Newton’s derivation of calculus, which explained the orbit of the planets, to the discovery of the Higgs-Boson particle, the great mysteries of the universe are slowly being uncovered. Medical history has again been rewritten this past week as Dr. Cassandra James finally answered the age-old question that has plagued the minds of women throughout the ages:

Where do men’s balls go when they ride bikes?

James, a prominent biophysics researcher at MIT, the institution where she received her Ph. D in 2003, has been trying to find the solution to this paradox for as long as she can remember. In our recent interview, James explained to us when she first encountered this question to which she would end up dedicating almost her entire life. “It was spring,” she explained, “and my dad was teaching me how to ride my very first bike without training wheels. I probably was four years old, maybe five.” She went on to explain that, while following her father Jackson down their neighborhood street on a bike, she noticed that “his ballsack was not where it normally was and it perplexed me. I couldn’t figure out what happened.”

Not only did James ponder this enigma for most of childhood, but this fascination with the bike-ballsack (or “bikesack” as she calls it) followed her into her young adult years. In fact, James wrote her doctoral dissertation trying to answer this very question. In her work, she explains that there is no logical place for the balls to rest during rides without excruciating amounts of pain, due to extensive amounts of time spent sitting on top of the balls. She argues, therefore, that they must be sucked back into the body, creating a temporary vagina-like cavity. Her calculations were seemingly sound, however, in 2010, James realized that there was something that she had forgotten.

“I was thinking about ballsacks during lunch one day,” the doctor explained, “and I couldn’t stop picturing the sack dangling back and forth, swaying almost like one of those pendulum thingies that can tell the time using the Earth’s rotation. I then thought ‘how would a bike seat change this picture?’” She claims that the truth appeared immediately. As she describes, “I realized that there was no way that the testicles are sucked back into the body. They just kinda sit there.”

Since this discovery, James has been working on a new book which disproves her earlier findings. According to her website, her work entitled “Red Balls are the New Blue Balls,” will be available exclusively in Barnes & Noble bookstores across the country this coming September.