Both shivering and brown fat activity increase your energy expenditure, causing you to burn more calories in cold temperatures.

Can you lose weight by shivering?

That matters because brown fat is easily turned into energy by the body's mitochondria stores, meaning it's easier to burn off. And sure enough, irisin is present in our bodies when we shiver, just like when we exercise, meaning that unpleasant shaking sensation can indeed help us burn fat.

Does shivering burn energy?

Shivering, like exercise, triggers muscles to secrete a hormone that stimulates energy use in brown fat cells. The findings hint at new ways to alter the body's energy balance and treat conditions such as obesity.