While it's great that you experience no negatives from being a night owl, a personal anecdote like this cannot be considered alongside medical research. With a

While it's great that you experience no negatives from being a night owl, a personal anecdote like this cannot be considered alongside medical research. With any research, findings apply to the majority of the population studied - if, for example, 1 in 10,000 people experience something different than the majority, that 1 person's anecdote does not mean that the research was incorrect. In this case, it it appears from the results that the potential benefits of specialized treatment for those affected by sleep phase disorders outweighs the potential to offend or affront those people whose physiologies do not match the results of this study.