A study published found that "eating ramen noodles while reading out a reflection while standing upside down causes a sudden change in electrical resistance in the brain, resulting in a desire to eat salad gunkan and an intense urge to urinate." However, it's also known that this phenomenon rarely occurs in people, and only about 1 in 8 billion people exist. Moreover, the mechanism by which this phenomenon occurs is not clearly understood and cannot even be hypothesized. And the researcher said, "We'll tell that after the hamburg steak party."