Question

what is the relationship between sleep and alzheimers disease? during sleep, metabolites that are known to contribute to alzheimers disease are removed from the brain. no conclusive human research has been done on the relationship between sleep and alzheimers disease. sleep research has shown that too much sleep can contribute to the development of alzheimers disease. too little sleep can cause alzheimers disease.

Explanation:

Research shows that during sleep, the glymphatic system removes metabolites (like amyloid - beta) linked to Alzheimer’s. The second option is wrong as there is conclusive research. Too much sleep isn't shown to cause it, and too little sleep is a risk factor, not a direct cause. So the first option is correct.

Answer:

During sleep, metabolites that are known to contribute to Alzheimer’s disease are removed from the brain.