Answer:
Autoimmune disorder
Explanation:
An autoimmune disorder occurs when the body's immune system attacks and destroys healthy body tissue by mistake.
The blood cells in the body's immune system help protect against harmful substances. These substances contain antigens. The immune system produces antibodies against these antigens that enable it to destroy these harmful substances.
When you have an autoimmune disorder, your immune system does not distinguish between healthy tissue and potentially harmful antigens. As a result, the body sets off a reaction that destroys normal tissues.
Stress Can Be Especially Detrimental to those with Autoimmune Diseases.
A new study has found an association between stress-related conditions such as anxiety and post-traumatic stress disorder (PTSD) and autoimmune diseases such as type 1 diabetes, celiac disease, and rheumatoid arthritis (RA).
The answer is A. Hepatitis B.
The control group is usually the group in which none of their variables are changed. This group is used in order to compare it with the outcomes of the other groups.
