Keeping weight off may be stymied by fat cells’ ‘memory’ of obesity

Some genetic changes in fat cells don’t go away after weight loss

A scanning electron microscope image shows a close up of fat tissue in false color. The cells are rounded with strings of connective tissue attached.

A new study suggests that adipose tissue, which contains fat cells (shown red-yellow in this scanning electron micrograph), can carry a genetic “memory” of obesity that may make it harder to keep weight off.

STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY/GETTY IMAGES

Fat tissue may commit weight to memory.