In addition to noting the men's BMI, researchers also did brain magnetic resonance imaging, looking at brain volume, blood flow and concentrations of metabolites in the brain.
除了注意他们的BMI指数外，研究者还对他们做了脑部磁共振，观察脑容量，血流和脑部代谢物浓度。
2
Researchers did magnetic resonance imaging or MRI scans to measure brain volume in the hippocampus, the part of the brain responsible for learning and memory.
研究者们磁共振成像或MRI扫描测量大脑海马的体积，它是大脑用来学习和记忆。
3
Dr Narici began by comparing the volume of calf muscles using magnetic-resonance imaging.