In the study, mice were fed with dried milk powder made from cows milked both during the day and at night by researchers from Seoul, South Korea.

在这项研究中，研究人员给老鼠喂食干奶粉，这些奶粉是由韩国首尔的研究人员在白天和晚上分别从奶牛身上挤奶制成的。