Samir’s Selection 09/04/2013 (p.m.)
BBC News – Sleep ‘boosts brain cell numbers’
Scientists believe they have discovered a new reason why we need to sleep – it replenishes a type of brain cell.
Sleep ramps up the production of cells that go on to make an insulating material known as myelin which protects our brain’s circuitry.
The findings, so far in mice, could lead to insights about sleep’s role in brain repair and growth as well as the disease MS, says the Wisconsin team…
In contrast, the genes involved in cell death and stress responses were turned on when the mice were forced to stay awake.
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