Alzheimer's is pathological similar to many diseases. You might be thinking of bovine spongiform encephalopathy or Creutzfeld Jacobs disease (CJD) in humans.
These include the excessive build-up of cerebrospinal fluid in the brain (a condition called hydrocephalus ), paralyzed arms and legs (spastic quadriplegia), an abnormally small head (microcephaly ), difficulty in tasks like walking and reaching.
Hydrocephalus is a condition which can be disabling or can cause disabilities if it cannot be managed. Medications can be prescribed and some times a shunt is installed in the head so that fluid is able to be removed so that the brain does not have increased pressure on it. If hydrocephalus is managed, then the symptoms can be managed as well, and it is less disabling - the person can live a normal life. If it is not able to be managed, then the symptoms can be extremely disabling: headaches, vision disturbance, seizures, memory loss, personality changes, difficulty walking. If hydrocephalus is severe during infancy it can cause brain damage and physical disabilities. In less severe cases, it can cause developmental delays, which can lay the groundwork for disability.
headache; nausea and vomiting, especially in the morning; lethargy; disturbances in walking (gait); double vision; subtle difficulties in learning and memory
The correct phrase is "walking past" as it indicates movement in relation to something else.
*boy and girl duet
Anything that walks across a boundary shared by two locations. For instance, if something walks into A from B, it is walking out of B and walking into A; therefore, it is walking in but walking out.
More often then not there is a medical condition causing the sleep walking, finding the medical condition and treating it is the best cure. Heavy drinking may also be resonsible, again, it is not the sleep walking that is the problem but the cause. You will not treat the sleep walking with out knowing the cause. See a doctor.
The value of a 1941 Walking Liberty half dollar coin can vary depending on its condition and mint mark. In circulated condition, it is typically worth its silver content. If in uncirculated condition or with a rare mint mark, it can be worth significantly more to collectors.
The accepted phobia name for this condition is Ambulophobia.
Knows something about everything
It depends on the year condition and if it has a mintmark or not. The related link below has information and values about walking liberty half dollars.
$50 - $60