Reacción a "Not changing the time in summer or winter in the US would reduce strokes and obesity, according to a study"

The article published by PNAS has undergone a peer review process that guarantees its soundness and quality, backed by the prestige of the journal itself. It also provides insight into a little-studied aspect, namely the chronic effect of DST/SDT (daylight saving time and standard or winter time) time changes, as opposed to the more widely known acute effects. The results may help decision-makers in both Europe and Spain to decide whether or not to maintain the time change. In this regard, the data support the elimination of the time change and the adoption of SDT over DST (albeit with little difference). The study is elegant and well designed.

Its limitation is that it uses models (on the other hand, one of the few possible approaches for this type of study) and, as such, modelling involves assumptions that are not always reproduced in outpatient conditions. Thus, in Spain, a sleep schedule from 10:00 pm to 7:00 am during working days is unlikely. The difference in geographical extent could also mean that the results obtained are not as conclusive in our country, as the differences in latitude between east and west are much smaller than in the US, but this does not detract from the validity of the data obtained or the conclusions.