The Optimal 22°C(72°F) great for Cognition

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Winter Wakes Up Your Mind–and Warm Weather Makes it Harder to Think Straight—Scientific American

Despite this minimal deviation in temperature, the researchers found remarkable differences in cognitive functioning. In one lab study, participants were asked to proofread an article while they were in either a warm (77°) or a cool (67°) room. Participants in warm rooms performed significantly worse than those in cool rooms, failing to identify almost half of the spelling and grammatical errors (those in cool rooms, on the hand, only missed a quarter of the mistakes). These results suggest that even simple cognitive tasks can be adversely affected by excessive ambient warmth.

Winter Wakes Up Your Mind--and Warm Weather Makes it Harder to Think Straight