A2. The concepts below (A1) were believed true for many years, but are currently being challenged. Neuroplasticity is the name of the science, and a Wikipedia entry will advise. Briefly, a) neurons may be re-trained to undertake new tasks. and b) there appears to be evidence for the creation of new neurons.
A1. None. Your brain never produces new cells, as you're stuck with the same cells you were born with. They slowly (and indeed, very slowly) die off, one by one, over time, but they are not missed. It only has an effect on you when you are in your 70s or 80s.
Every 5 seconds somebody is using the toilet or 0.2 people a second
Probably a lot...
4 people are born every second and 3 die every second soo......use a calculator!
A clock that gain 30 second every hour will gain how many minutes in a day?
The universe expands 45 miles every second.
A few of my braincells just died trying to make sense of this question.FAIL
Every Avenue has currently only released one album but they are working on a second.
A man produces about 1,500 sperm cell every second. It only takes one sperm cell to make a baby.
The eye moves 50 times every second. - This is a Snapple Real Fact #172
Every Second Counts - book - has 246 pages.
one born every second. one dies every few.
about one
There are 100,000 hairs growing every second. Not very fast, but they're growing!
Every 5 seconds somebody is using the toilet or 0.2 people a second
Probably a lot...
Every 10 Seconds x
150 000 American gallons flow over every second.