Function of brown adipose tissue in infant and adult

A particular kind of fat known as brown adipose tissue (BAT) is primarily involved in the process of non-shivering thermogenesis, which is the production of heat for the purpose of maintaining a constant body temperature. When it comes to the metabolism of calories, brown adipose tissue (BAT) makes use of uncoupling protein 1 (UCP1) in its mitochondria, in contrast to white adipose tissue (WAT), which serves as a reserve of energy. The dark hue of BAT and its high metabolic activity are both due to the abundance of mitochondria and capillaries that it contains. Although it is most active in newborns, functional BAT is still present in adults, particularly in the supraclavicular and paravertebral areas of the brain. Its existence in healthy people has been established by recent imaging investigations employing PET/CT, especially when the subjects were exposed to chilly situations.