Wait… there's no lymphatic system in the brain! It's on the outside of the skull (which is why you should rub your head daily).
The brain detoxes and clears away waste from the brain, not as other organs do, but through the blood vessels! And it only happens when we sleep or meditate. This TED talk by Jeff Iliff explains how fabulous our biology is.
I can only bow! Once again we are oblivious to the marvelous intelligence of our nature. How could we ever think we know better than the biological evolution of 13.7 billion years? Do we ever learn? When scientists started seeing the body as a machine culminating about 100 years ago, sleep and a healthy living became something for wimps, as Edison expressed; “Sleep is a waste of time!” Thats one reason why the macho culture is not very healthy (more about this in other blogs)
Many doctors in all parts of the world still treat us as if we were machines that can be fixed like you fix a car with some spare parts, but it is a convention and a facade. Most medical professionals and scientists know that there is more to us than current science can prove, but they can't express it. This devastating way of seeing our bodies makes us trust experts more than ourselves. We stopped respecting our own signals, like our sleep patterns, our hunger signals, our feelings, etc., and today’s generation pays the bill with disease.