Ignificantly longer lives. While HAART has been increasing the lifespan of those infected with HIV, it has also led to an increased prevalence of HAD [32-38]. As the pathology of HAD, like Alzheimer's Disease (AD), is commonly characterized by an increase in the amount of amyloid-beta (Ab) peptide in the brain [39], evidence suggesting microglia modulate the clearance of potentially neurotoxic Ab