A complex chain reaction (IMAGE) Cincinnati Children's Hospital Medical Center Caption This graphic illustrates, in a mouse model, how type I interferon from fat cells can disrupt metabolism and make obese people more likely to have weakened immune systems. Credit Cincinnati Children's Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.