Fat cells are grown in our first year and during puberty.  Fat cells grow about three times there normal size and they can divide to make new fat cells.  Fat cells can shrink but do not decrease in numbers or die.  How much a fat cell can grow can change from person to person.  Fat cells do not show shrinkage around the waist line during dieting alone.  People who have weight around their waist line have a higher risk of heart disease, high blood pressure, diabetes and other chronic conditions.

 

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Reference link:

http://calorielab.com/news/2006/08/17/fat-cells-never-say-die/