Causes of some brain concussions
- Violent trauma:
A brain concussion can cause immediate and usually temporary impairment of brain function such as of thinking, vision, equilibrium and consciousness
The concussion occurs from impact when the head accelerates rapidly and then is stopped, or from spinning when the head is spun rapidly and then is stopped.
Impact to the brain can occur when the head slams into a hard surface.
The skull is stopped by the hard surface but the brain, floating in cerebrospinal fluid (CSF), can still move and is shaken.
Spinning of the brain can occur when a blow causes the head to snap rapidly.
The skull then stops spinning but the brain, floating in cerebrospinal fluid (CSF), can still move and is damaged.
Violent trauma, whether it be from shaking or spinning, causes the brain cells to become depolarized and fire all their neurotransmitters at once in an abrupt cascade, flooding the brain with chemicals; there is a sudden flood of ions (including sodium, potassium, and calcium, and deadening receptors in the brain that are associated with learning and memory.
Latin: (no equivalent)
Various spellings: Hygeia, Hygea, Hygia; personification of health and healthy. We now have the derived word hygiene, the science of health, pertaining to health, healthful, living well; the science that deals with the upkeep of health; system of principles or rules for preserving and/or promoting health.
There seems to be too many addle-brains who are thinking about running for President of the U.S.