In anorexia nervosa (AN) restrictive food intake leads to a slowed metabolism. Brain temperature, can provide information about brain metabolism. Difference between Magnetic Resonance Spectrum peaks (ΔH20-NAA) provide a proxy for brain temperature in 30 AN and 30 healthy control (HC) participants. We found no group differences in brain temperature between AN/HC. Further, we report no group differences in brain temperature between a subgroup of the AN participants with the lowest BMI/body temperature compared to a subsample with higher BMI/body temperature. The results suggest a prioritization of brain metabolism in AN in line with the selfish brain hypothesis.
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Doose et al. (2024) studied this question.
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