The brain stem which is composed of the Pons, The Medulla, and the Midbrain serve a very vital function... They control the functions that keep you alive; Heart Rate, Respiratory Rate, Breathing input and output, Blood pressure, as well a vasomotor functions. So taking this into account, an injury to the brain stem is extremely bad, as that can and will most definitely be very lethal.
Anemia because it decreases blood viscosity
I mean they are necessary for some people..
Not sure about eating them
Answer: HIV is the virus that attacks the immune system and AIDS is when HIV is in a severe phase, causing big damage to the immune system.
Explanation:
HIV: Known as the human immunodeficiency virus, it is the one that causes HIV infection.
AIDS: This disease is caused by HIV, and it is the most advanced stage of HIV.
It is important to explain that because a person has HIV it does not mean that they will contract the AIDS disease since to get to AIDS they have to be a person who did not take care of when they were diagnosed with HIV. The reasons why a person can contract the HIV virus are: having unprotected sex, since it is not known if either person is a carrier of the virus. Blood transfusions are also a means of spreading the disease and also injecting drugs and sharing needles. Some illnesses that a person with the HIV / AIDS virus can have are tuberculosis, pneumonia, and toxoplasmosis.
It can affect the environment because it could absorb into the ground and contaminate the groundwater, then this could runoff into a pond, river, lake, etc., which would then contaminate that water source. This also negatively impacts wildlife because they rely on these water sources to drink water, bathe, and/or catch food (ex: a bear catching a fish in a river).