Brain injury
Also called Acquired brain injury, ABI, Traumatic brain injury, Head injury
The same person, running on changed hardware. The hidden effects outlast the visible ones by years.
Important: This page is general information, not medical advice, and it is not a diagnosis. If you are worried about your health or someone else's, speak to a GP, pharmacist, or call 111. In an emergency, call 999.
What it is
Families brace for the physical recovery and get blindsided by the other half. Walking comes back. Personality, memory, fatigue and impulse control are the ones that stay.
An acquired brain injury is any damage to the brain after birth: a fall, a road collision, an assault, a stroke, a period without oxygen, an infection such as meningitis. Around 1.3 million people in the UK live with the effects of one.
Where the damage sits matters more than how much of it there is. A small frontal lobe injury can change judgement and inhibition permanently while leaving everything a scan measures looking reassuring.
Signs you might notice
Fatigue of an order healthy people find hard to credit. Not tiredness. A hard stop.
Memory that will not hold new information, while older memories stay intact.
Initiation gone: the person genuinely wants to do the thing and cannot start it. This gets read as laziness by almost everybody at first.
Emotional control loosened. Shorter fuse, tears arriving unbidden, disinhibition in conversation.
Slower processing. Information arriving faster than it can be handled, especially in noisy rooms.
How it can affect day-to-day life
The invisibility is the problem. Somebody who looks entirely well is expected to behave entirely as before, and every shortfall gets attributed to character.
Relationships take the strain. Partners often describe a bereavement with no death and no permission to grieve.
Employment falls away, and with it structure. Brain injury is heavily over-represented in the homeless population and in prisons, which tells you how thin the support is after discharge.
The clinical risk that gets missed: fatigue and low mood look identical, and treating one as the other wastes years.
Supporting someone well
Build the day around energy, not around tasks. Rest before exhaustion, not after it. A planned twenty-minute rest at eleven prevents a lost afternoon.
Reduce noise and demand. One conversation at a time, television off, one instruction at a time.
Use external memory relentlessly and without embarrassment. Whiteboards, phone alarms, a single diary. If it is not written down it is not happening.
Prompt rather than nag for initiation problems. Starting the task alongside somebody usually works where asking them to start it does not.
Give feedback about behaviour privately, immediately and briefly.
Fiducia Guardian holds the day, the medicines and the care team in one record, which matters after a discharge that typically hands a family a folder and very little else. For someone whose speech is affected, Fiducia Talk is free and needs no assessment to start using.
Where to get help
Ask for a referral to a community neurorehabilitation team. These are patchy by area, so ask, and ask again if the answer is vague.
Headway have a free helpline on 0808 800 2244 and run local groups that families consistently rate as the most useful thing they found.
Ask the local authority for a Care Act assessment, and a separate carer's assessment.
Tools we make that might help
These are our own products. We have put them here because they do something specific for this condition, not because every page needs a list.
Fiducia Guardian
The day, the medicines and the care team in one place, for the period after discharge when nothing is joined up.
Fiducia Talk
Free AAC, usable the same day, when speech is affected.
Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28
Important: This page is general information, not medical advice, and it is not a diagnosis. If you are worried about your health or someone else's, speak to a GP, pharmacist, or call 111. In an emergency, call 999.
Fiducia Together