How many cells are in the humans body?

Question

That means counting every single cell! Muscle brain, red blood cell etc.

Answer 1

waaay too many to count, and they're constantly being replaced

Answer 2

The number is on the order of a trillion cells that have the human genome.  Closely associated with each human is about ten times more cells, primarily bacterial, that do not have the human genome.  Most of these live in the digestive system and on the skin.

Answer 3

that's 100 trillion

Keep in mind, all of this figure is just an estimate. At this time, there really is no way to know the exact number of cells in a human body. Can you imagine trying to count them all?

Plus the number will vary from person to person, depending on their size. The number of cells in your own body is constantly changing, as cells die or are destroyed and new ones are formed. So even the number of cells in your own body is not static.

[&] Yeah i agree evolution does sound sort of simplified when you look at all this =]

Answer 4

100 trillion cells

Answer 5

100 billion