When something is awry, it's not working the way that it should. Something that is awry can be anything from a car that doesn't start to a machine that isn't working properly.
Amyloid is a type of protein that is often found in the brains of people who have Alzheimer's disease. It is believed to be a cause of the disease.
Associational is a type of learning that is based on associations. When you are associational, you are learning by connecting different things in your mind.
Glial cells are cells that are responsible for the maintenance of the brain and the spine. They play an important role in the brain's function, and they can regenerate damaged cells.
To pulse is to beat quickly and regularly. The heart pulses to circulate blood throughout the body.
Fiendishly is a word that is used to describe someone who is very cruel and evil. They are usually obsessed with inflicting pain on others, and they enjoy it.
The middle age is the stage of life between the young age and old age. It's a time when people are in the middle of their careers, and they are starting to become more responsible.