Functions of the BBB. The BBB has several important functions: 1  Protects the brain from foreign substances in the blood that may injure the brain. 2  Protects the brain from hormones and neurotransmitters in the rest of the body.unctions of the BBB. The BBB has several important functions: 1  Protects the brain from foreign substances in the blood that may injure the brain. 2  Protects the brain from hormones and neurotransmitters in the rest of the body.
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 plains of eastern Georgia are shielded from the influence of the Black Sea by mountains that provide a more continental climate. Summer temperatures average 20 C to 24 C, winter temperatures 2 C to 4 C. Humidity is lower, and rainfall averages 500 to 800 millimeters per year. Alpine and highland regions in the east and west, as well as a semiarid region on the Iori Plateau to the southeast, have distinct microclimates.