Exercise provides all of the following health benefits, except:

• A. Exercise reduces inflammation and improves body’s immunity against infectious diseases.
• B. Studies have shown that regular exercise can reduce the risk of cognitive impairment.
• C. Regular exercise is associated with a reduced risk of all-cause mortality.
• D. Exercise can help prevent autoimmune diseases by decreasing inflammation.

Answer: (D)

Verified step by step guidance

1. Understand the question: The problem is asking which statement is NOT a health benefit of exercise. This means we need to identify the incorrect statement among the options provided.
2. Review the health benefits of exercise: Exercise is known to reduce inflammation, improve immunity, lower the risk of cognitive impairment, and reduce the risk of all-cause mortality. These are well-documented benefits supported by scientific research.
3. Analyze the incorrect statement: The statement 'Exercise can help prevent autoimmune diseases by decreasing inflammation' is misleading. While exercise reduces inflammation, it does not specifically prevent autoimmune diseases, as these are complex conditions influenced by genetic and environmental factors.
4. Compare the options: Cross-check each option against established health benefits of exercise to confirm which one does not align with the evidence.
5. Conclude the answer: Based on the analysis, identify the statement that is not supported by scientific evidence as the correct answer to the question.