Question

which of the following is not positively influenced by physical activity?
a、 cardiovascular disease
b、 obesity
c、 osteoporosis
d、 allergies

please select the best answer from the choices provided.

○ a
○ b
○ c
○ d

Explanation:

• For option A: Physical activity can improve cardiovascular health and reduce the risk of cardiovascular diseases, so it is positively influenced.
• For option B: Physical activity helps burn calories and can prevent or reduce obesity, so it is positively influenced.
• For option C: Weight - bearing physical activities can help improve bone density and reduce the risk of osteoporosis, so it is positively influenced.
• For option D: Allergies are mainly related to the immune system's response to allergens (such as pollen, dust mites, etc.), and physical activity does not have a direct positive impact on allergies.

Answer:

D. allergies