Dangerous conditions influencing sport injuries include all answers which you've mentioned (overuse, overexertion, and incorrect technique). It doesn't, however, include practicing and drills - d.
Practicing and drills is the thing which would help us become more profficient at a certain task and eventually sport through it.
Food poisoning, common cold , inflammation
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.
I would put down my equipment immediately out of harms way and rush over to that person and spot them. This way nothing bad can happen to that person.
