Question

too much sleep decreases the mind’s alertness. sleep results in forgetting information that was previously rehearsed or rehearsed. sleep improves the body’s immune functioning. sleep depresses one’s mood. what is the relationship between sleep and alzheimer’s disease?

Explanation:

First, analyze each option:

• "Too much sleep decreases alertness" is about alertness, not immune.
• "Sleep causes forgetting" is about memory, not immune.
• "Sleep improves immune functioning" matches biological knowledge (sleep supports immune system).
• "Sleep depresses mood" is about mood, not immune.

So the correct option is the one about immune improvement.

Answer:

Sleep improves the body's immune functioning.