Question

Why does prolonged stress often result in an increase in illnesses? It eliminates the warning signs. It is an asthma trigger. It weakens the immune system. It causes the fight-or-flight response.

Answer 1

Well stress can cause a lot of health issues. This question is asking how prolonged stress results in the increase in illnesses. Prolonged stress can cause for example; Anxiety Disorder, High Blood Pressure, Mental Disorder, Irritable Bowl Syndrome, Diabetes, and more. I am not sure about choice A because that is not necessarily correct. A stressful life can trigger asthma if you have the condition already so choice B is a possibility. Stress almost always has an effect on the immune system so choice C is the best answer so far. Stress could cause the fight of flight response but I don't think that choice D is what they are looking for.
I would say choice C.
Hope This Helps!

Answer 2

It weakens the immune system.

Step-by-step explanation:

According to scientific studies, prolonged stress affects the immune system and makes the body more susceptible to disease.

Cortisol is a hormone that acts to inhibit the body's defense system and is related to cardiovascular complications. With constant stress, the body produces it in large quantities, causing the body itself to relax its defenses. The consequence is the poor response of the immune system that becomes weakened and makes the body highly susceptible to disease.

To reduce stress and increase body protection, psychotherapeutic help is needed to treat the problem and implement a number of changes in habits: Sleep well, avoid smoking, drinking alcohol, and eating well, and doing physical activity.