This, in turn, might help to explain different temperature lag conclusions.

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Some of the proposed explanations for the link between shift work and obesity, such as irregular meal times and metabolism disruptions at the cellular level, may help explain the social jet lag findings as well, Roenneberg says.

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He notes that although a detectable tilt is caused when the temperature drops by a few degrees, that tilt is too small to explain the anomalies and, in any case, it would lag roughly 30 minutes behind the shadow (because it takes time for the ground to cool) while the experimental measurements show a change in g instantaneously during an eclipse.

ECONOMIST: Gravitational anomalies