I read a few years back about a new discovery of lymphatic system connecting to the brain. Small lymphatic veins help clean out these substances, especially during the night. One doctor cured his wife from MS using vein balloons like they use in heart conditions on these veins.
I can't verify if this was real of fraudulent information.
“As you age, the fluid movement in your brain slows, sometimes to a pace that’s half of what it was when you were younger...We discovered that the proteins responsible for Alzheimer’s actually do get drained through these lymphatic vessels in the brain along with other cellular debris, so any decrease in flow is going to affect that protein build-up.”
Lymphatic Vessels Discovered in Central Nervous System (2015)
