To keep the human brain supplied with energy when food was scarce, mammals evolved the ability to switch from burning carbohydrates to burning fat in order to preserve skeletal muscle that would otherwise be metabolized and converted to glucose....
Members of a majority group tend to hold negative views of minority-group individuals who claim more than one identity, according to new Yale-led research. The negative bias is driven by fear that dual-identity individuals will be disloyal to the majority...