Yes, her obesity mixes with her personality trait of being a bit dense and thus you have high-density fat folds around the entire surface area of her skull, causing intense pressure on her brain. Several of her cognitive abilities are heavily impaired like having a filter for speech. When someone might think, "I should probably not say that because it is either going to get me in trouble or it's something very weird to say out of the blue", Kirsche has already finished that sentence before most people have finished weighting their options.
This condition does provide several unique benefits though like being a supremely determined MMO/grinding game player. While most normal people would shoot themselves after a certain amount of time, Kirsche is completely unaware that 148 hours have passed by. Researchers theorize that she might be suffering from a mild case of anterograde amnesia, where she would be unable to store newly created memories into long-term memory. Researchers claim she would only have a mild case of this because it isn't a constant issue, it is more like packet loss in an internet connection.