View Full Version : BBC: "The brain uses sleep to wash away the waste toxins[...]"

10-17-13, 05:01 PM
This is an interesting bit of science reportage on neurobiology and sleep. Thought I'd share it here.

"The brain uses sleep to wash away the waste toxins built up during a hard day's thinking, researchers have shown."

I'd like to read the real article in Science.

10-17-13, 05:51 PM
Thanks, that's interesting. It's well known that lack of sleep or poor sleep
leaves us foggy-headed and makes ADHD symptoms seem worse.

10-17-13, 05:59 PM
Real, true brain-washing, as it should be done! :)

That sounds very interesting...

Kunga Dorji
12-07-13, 11:35 AM
So- is the improvement due to "sleep" or due to lying horizontal?

One of my friends across the web:

and his other site:

Cerebrospinal Fluid, Hydrocephalus and Edema
CSF also mixes with the fluids that surround the cells of the brain called interstitial fluids. CSF is thus connected to waste removal from the brain. A back-up in venous outflow causes interstitial edema or swelling. A back-up in CSF causes hydrocephalus ( CSF mixes with and leaves the brain with venous blood, therefore, a back-up in the venous drainage system of the brain can lead to a back-up in CSF. This has led some scientists to suggest that edema and hydrocephalus in the brain are essentially one and the same.
Under extreme conditions an increase in CSF volume can cause the ventricles to enlarge as in the picture below of a child with hydrocephalus. The ventricles are the large black shadows in the middle of the brain. In this case they are too large, and compressing the brain.

We now have upright MRI results supporting this hypothesis:
namely that due to gravitation the brain swells a bit during the day-- and that this is a bigger problem with bad neck alignment.

So- lying down to sleep allows one to become "level headed".