Why does a healthy cardiovascular system help prevent neurological diseases and disorders?

Question

because arteries provide the needed blood flow to the brain and neurons

because memory loss is prevented when the heart pumps efficiently

because the heart and spinal cord are close together in the body

because exercise is critical for proper breathing, which can prevent seizures

Answer 1

Choice A is the right answer- Healthy arteries transport blood more efficiently, along with its nutrients and oxygen that the brain requires a lot of.

You could also use process of elimination: Choice B may be factually correct, but it doesn't answer the question of WHY. Choice C is silly- proximity does not mean the systems interact, especially considering the circulatory system is closed. Choice D, like Choice B, sounds reasonable but doesn't really answer the WHY (and besides, the relationship between exercise and breathing is more Pulmonary than Cardiovascular).