Is cognition seasonal?

The idea that our mental life is more sluggish in winter apparently seductive. This article reviews the evidence for claim there a seasonal cycle human cognition. Several methodologies have been used with participants such as over-wintering scientists Antarctica, residents of polar regions, and patients psychopathology no clear tendency cognition to be impaired winter. Some large-scale public health studies report seasonality but are inconsistent regarding when year peak trough. Claims has an annual should regarded speculative burden proof must borne by anyone inclined exists. An analysis influence some key shows their results misleadingly cited resistance null conclusion.