A new study carried out by researchers at Joslin Diabetes Center in Boston has found that cold could be an effective way in fighting obesity as it triggered "good" fat to burn more calories.
The researchers found that reducing the body temperature could make good fat, also known as brown fat, to burn up more calories in order to generate heat required to keep the body warm.
The researchers were testing whether ephedrine could be used to trigger the brown fat but found that the injections were unable to stimulate the activity of brown fat.
"We propose that agents that work similarly to cold in activating brown fat specifically can provide promising approaches to fighting obesity while minimizing other side effects. At the same time, we now know that ephedrine is not the way to do it", lead researcher Dr Aaron Cypess said.