Question

what effect does exercise have on the hippocampus?
a. increases size
b. decreases size
c. no effect
d. improves oxygen flow only
which benefit is most directly related to flexibility - focused exercises like yoga?
a. improved immune function
b. better cardiovascular health
c. reduced injury risk
d. increased brain activity

Explanation:

First Question:

Research in neuroscience and exercise physiology shows that regular exercise (especially aerobic exercise) can increase the size of the hippocampus, which is involved in memory and learning. Option b is incorrect as exercise doesn't decrease its size. Option c is wrong as there is a documented effect. Option d is incorrect because exercise has more effects than just oxygen flow on the hippocampus, and it does increase its size.

Flexibility - focused exercises like yoga improve joint range of motion and muscle elasticity. This directly leads to a reduced risk of injury (e.g., from strains due to tight muscles). Improved immune function (a) is more related to overall health, diet, and moderate aerobic exercise. Better cardiovascular health (b) is linked to aerobic exercises. Increased brain activity (d) is not a direct benefit of flexibility - focused exercises.

Answer:

a. Increases size

Second Question: