Increased levels of brown fat may also be attributed to an increase in a brain chemical called brain-derived neurotrophic factor [BDNF] found in the sociable mice.
在社会性的小鼠大脑中发现，褐色脂肪的增加可能还归因于大脑中的一种化学物质，称为脑源性神经营养因子。
2
Another factor may be that, duringthe economic expansion, employers were not quick to hire workers, whichleft little obvious fat for them to cut now.
另一个因素是经济膨胀时雇主不大量雇佣工人，这使得当前情况下的裁员很不明显。
3
Waist fat can also be a contributory factor in diabetes and heart disease.