The symptoms of HIV can differ from person-to-person and some people may not get any symptoms at all for many years. Without treatment, the virus will get worse over time and damage your immune system. There are three broad stages of HIV infection, with different possible effects.
What are the three levels of cultural complexity that sociologists use to study different cultures? The three levels are perception, aspects that are below the conscious levels, and patterns of behavior. Each of these can be used to help learn about a society. Edit
Cultural anthropologists study all aspects of human society, including family units, political and economic systems, religious beliefs, and even the ways in which societies feed and clothe themselves. Physical anthropology, in contrast, emphasizes the biological development of humans over time.