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.
Variance in the climate across north Georgia is largely a function of terrain. Most of the northern half of the state is made up of rolling hills with elevation ranging from about 400 feet across the midstate to generally between 800 and 1100 feet across the rest of the area.inter high temperatures average in the mid 50s to lower 60s. Lows average in the mid 30s. Lows of 32 degrees or lower can be expected on 40 to 50 days. Spring and Autumn seasons are characterized by much variability from day to day and from year to year.