肥胖往往有遗传性。 However, it should be considered a rough guide because it may not correspond to the same degree of fatness in different individuals. 但是,由于它未必意味着不同个体的肥胖程度相同,因而应将其视为粗略的指导。 Why fatness should affect the brain in this way is not clear, although a host of culprits have been suggested. 尽管如今已有很多的嫌犯,但肥 …