Scientists Discover Fat Cells Retain Weight Gain "Memory"

Scientists have discovered that fat cells have a kind of memory of when you were obese.

This means that even after losing weight, your fat cells might try to make you gain it back.

Researchers found this by studying mice and people who had weight loss surgery.

The fat cells in these people still showed changes that made them likely to regain weight.

These changes happen because of shifts in how your genes work, not in your genes themselves.

This may explain why it can be so hard to keep weight off after you lose it.

The scientists think that if they can figure out how to change these fat cells, it might help people stay slim for good.