You want to have it stable and working perfectly whether you are sleeping or being chased by a tiger,' Lester Drewes of the University of Minnesota in Duluth, US, explains. The blood-brain barrier, or BBB, consists of the endothelial cells lining the blood vessels in the brain.These fortress cells are glued together very tightly and, in contrast to other organs and tissues, there are no chinks between them for blood-borne materials to leak into brain tissue.ou want to have it stable and working perfectly whether you are sleeping or being chased by a tiger,' Lester Drewes of the University of Minnesota in Duluth, US, explains. The blood-brain barrier, or BBB, consists of the endothelial cells lining the blood vessels in the brain.
About North Georgia. Leaf change brings thousands of people into the north Georgia mountains every year. In response to a number of inquiries, we have come up with our tips on observing the beauty of this yearly show of color and our favorite places to witness this splendid time of the year. The optimum time to see the leaf change in the north Georgia mountains is normally the last weekend in October.
The leaves change colors first in Aroostook County, around the middle of the month. The change gradually makes its way south, reaching the Bangor area at about the third week of the month. By the end of the month, the high temperature is about the mid-60s, with lows dropping into the high- to mid-30s.