Answer:
The relationship between stress and illness is complex. The susceptibility to stress varies from person to person. Among the factors that influenced the susceptibility to stress are genetic vulnerability, coping style, type of personality and social support. Not all stress has negative effect. Studies have shown that short-term stress boosted the immune system, but chronic stress has a significant effect on the immune system that ultimately manifest an illness.
It is effective, the parents always have to stay positive!!
D. The statement may be true or false, depending on policies of the government
A non-sexual method can be by blood transfusion. If you take blood from someone who has HIV and use it on yourself you will get HIV. Same goes for injecting spinal fluid or any other bodily fluid. You cannot however transmit it by shaking hands with someone, or by sharing the toilet with someone or anything similar.