Answer:
1. While there is no cure for Alzheimer's, there are medications to help temporarily improve symptoms.
2. The most recent research is/was the research on the drug sargramostim, (AKA Leukine), It's thought that the drug may stimulate the immune system to protect the brain from harmful proteins.
hope this helps :)
Vagus nerve
Cranial nerves supply sensory and motor information to structures of the head and neck, controlling the activity of this region. Only the vagus nerve extends beyond the neck, to innervate thoracic and abdominal viscera.
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