Every day, every hour, every second one of the most important events in life is going on in your body—cells are dividing. When cells divide, they make new cells. read more
In human bodies, nearly two trillion cells divide every day. Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing. read more
In human bodies, nearly two trillion cells divide every day. Watch cells divide in this time lapse video of an animal cell (top) and an E. coli bacteria cell (bottom). The video compresses 30 hours of mitotic cell division into a few seconds. read more
For example heart cells hardly ever divide while cells of the hematopietic systems do this pretty often. – Chris ♦ Feb 21 '14 at 14:22 This is very difficult to answer since the rate of cell division is age and also health dependent. read more