Amnesia is when an individual loses all or some of their memory.
It can be caused by a blow to the head, brain illnesses, or an extreme emotional experience.
Anterograde amnesia - when the individual struggles to remember regular or day to day events and activities after a physical injury or accident.
Retrograde amnesia - when the individual struggles to remember events or activities that happened before their injury.
Transient global amnesia - disruption to the memory that lasts for around 4-12 hours normally following trauma.
Fugue amnesia - when the individual cannot remember who they are and struggles with identity.
More top news
A large part of Hagley Road in the south west of the city was cordoned off and later reopened.
Some rain overnight, becoming drier and much brighter tomorrow.
Dry, clear and cold at first. Rain arriving overnight