Bigger, Heavier, Hungrier (image) Norwegian University of Science and Technology Share Print E-Mail Caption As the world's population approaches 9 billion people, it's important to take note of the fact that people are getting larger and need more calories than they once did. Credit Graphic: NTNU Usage Restrictions With proper credit and only in association with articles about this research. Share Print E-Mail 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.