Answer: Some reasons for why we should being wearing masks is that it protects us from diseases. It doesn’t completely help us, but it does lower the chance by a lot of getting sick. It protects us from sicknesses from other people as well. When you cough, sneeze, or talk sometimes you can get some of you’re spit or mucus from the nose into the mouth of a person near you. Even if you do not have any sicknesses it is helpful to wear a mask so you do not. The type of material in a mask is important as well. If it may have a vent or something of the sort of in it, air and mucus can still get into the mask. One more reason you should wear a mask is that it could save you’re life.
False because mainstream smoke is defined as smoke from a cigarette or pipe. Second hand smoke is smoke that has been inhaled by someone then exhaled, making you the "second" one to breath it :)
Dementia and Delirium are two somewhat broad biological phenomenon that are biological causes of mental illness. These interfere with biological processes with the brain. If we wish to be more specific, Cancers, Alzheimer and Parkinson's Disease can affect the brain by pressing on important aspects (Brain Cancer's) and/or cause progressive degeneration (Alzheimer and Parkinson's)
