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Increasing belly fat in middle age is common, but new research shows it’s not just about eating more or moving less. Scientists have discovered that ageing changes how your body creates fat, especially around the waist.

A study published in Science Daily suggests that certain stem cells in your body, called adipocyte progenitor cells (APCs), start acting differently as you age. The study by researchers at City of Hope and University of California, Los Angeles, says that when  you're young, these cells stay mostly inactive. But in middle age, they start producing fat cells more actively, especially in the abdominal area.

This isn’t just fat building up from food. It's your body creating new fat cells because of changes in your biology. The researchers found that this process is triggered by a signaling switch called LIFR (leukemia inhibitory factor receptor). It turns on in older adults and tells your cells to make more belly fat. This was confirmed in both mice and human tissue samples.

Also read | Anti-ageing: Top 10 foods to reverse ageing, reduce wrinkles, increase skin firmness, and more

5 cellular reasons ageing expands your waistline:

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