Brain Cell Death
Date: June 2006
My younger sister told me tha her teacher told her
that 1000 brain cells die every second is that true?
There are probably 1000 cells in every part of your body dying every
second. It is estimated that you have over one trillion (1000 billion)
cells in your body. Most of the time, when the cells die they are replaced
by mitosis (cell division).
There is a great deal of speculation about the number of brain cells that a person
looses to death every day. The problem comes from the fact that most brain cells are
glia cells which assist, support and protect the neurons. A good article is found
at this site:
However, many will argue that the glia cells really do not count and the neurons stay
pretty much the same in number throughout life, but maybe not in physical condition.
New information is available all the time on this subject and related topics.
That is not quite right. You have around 9,000 brain cells a day after you
are 20 years old. We have around 100 billion brain cells, so 9,000 is not
that many. The cells that are still alive form new connections, helping
the brain to still function well. Things like drugs, laughing gas, smelling
paint thinners, and alcohol can increase the brain cell death rate to up to
300, 000 a day.
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Update: June 2012