Who has never sought his keys? Who never forgot a pot on the stove after a phone call?
Taken separately, these memory and attention deficits have innocuous consequences. But people with cognitive deficits such as people with traumatic brain injury (TBI), schizophrenics, people with intellectual disabilities, elderly people with Alzheimer's disease, etc. are confronted with them every single day. They know how many of these deficits can upset a life.
The big difference, however, is that in degenerative processes, disturbances are often irreversible and affect people at the twilight of their lives. In schizophrenia, intellectual disability or TBI, the person is usually young and will have to consider the rest of his existence with the vagaries related to memory disorders, attention and executive functioning.
For example, people living with the sequelae of TBI have essentially the following characteristics (to varying degrees):