Is it true that sleep ‘cleanses’ the brain?

But does the influx of dye serve as a reliable indicator that toxin elimination will occur at a similar rate? According to the researchers, who are debating how to interpret the results of the experiment, measuring this process by other means is not yet possible.

It is possible that the brain has more than one mechanism for clearing toxins. Small molecules, like dyes, may be excreted in one way. And large particles, like beta-amyloid, which is linked to Alzheimer’s, in a completely different way. In the future, scientists plan to conduct new experiments to find out.