Mild stress stimulates the activity and heat production by brown fat associated with raised cortisol. Brown adipose tissue (BAT), also known as brown fat, is 1 of 2 types of fat in humans and other mammals. Initially only attributed to babies and hibernating mammals, it was discovered in recent years that adults can have brown fat too. Its main function is to generate body heat by burning calories (opposed to white fat, which is a result of storing excess calories. People with a lower body mass index (BMI) therefore have a higher amount of brown fat.
To induce a mild psychological stress, 5 healthy lean women had to solve a short maths test in the first run, but in the second run, the test was substituted with a rela...
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