Depending on which part of the nervous system is affected, symptoms could include headache, dizziness, memory loss, numbness, pain, vision problems, and difficulty walking. Mount Sinaiâs NeuroAIDS Program specializes in diagnosing and treating the full range of HIV-related neurological disorders.
Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic. Those that are man-made include the chlorofluorocarbons (CFCs) , hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF 6).
Gases are often invisible and assume the shape and volume of their container. The air we breathe is made up of different gases, but it is mostly nitrogen and oxygen. We can see through some solids like glass. When liquid gasoline is burned in a car, it turns into various gases which go into the air from the exhaust pipe. Fire is a mixture of hot gases.