Key points from article :
Signalling molecule called interleukin-6 plays a critical role in fat burning process.
Benefits of exercise halted when interleukin-6 signaling blocked with drug, tocilizumab.
Without drug, 12-weeks of bicycle exercise decreased visceral abdominal fat in obese adults.
Confusingly, interleukin-6 can sometimes have opposite effects on inflammation.
Signalling may act differently in healthy and diseased people.
The study was published in the journal Cell Metabolism.