hello the answer is B. intensity It reflects how difficult an exercise is for a certain person to complete and the amount of oxygen the body uses to do an exercise and the amount of calories burned while doing the activity. The higher the intensity, the harder the activity, the higher the heart rate, and the more burned calories hope this helps!!!
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).
Aerobic activity. Get at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous aerobic activity a week, or a combination of moderate and vigorous activity. The guidelines suggest that you spread out this exercise during the course of a week.
hope this helps :)
