Frontotemporal Dementia

Frontotemporal dementia (FTD) is a group of conditions caused by progressive damage to the frontal and temporal lobes of the brain — the areas responsible for personality, behaviour, language, and emotional regulation. Unlike Alzheimer's disease, which typically begins with memory problems, FTD often starts with changes in personality, social behaviour, or the ability to communicate.

There are several variants of FTD. The behavioural variant may cause a person to act inappropriately in social situations, lose interest in things they used to enjoy, become impulsive, or show a lack of empathy — not because they do not care, but because the part of their brain that manages these responses is affected. Language variants (called primary progressive aphasia) can make it increasingly difficult to find words, form sentences, or understand what others are saying.

FTD tends to develop at a younger age than other dementias. Many people are diagnosed in their 50s or early 60s, and some even in their 40s. This can be particularly challenging for families who may still have young children at home, or for the person who is still working when symptoms begin.

Because the early symptoms of FTD are often behavioural rather than memory-related, it can take longer to receive a correct diagnosis. Changes in personality may initially be attributed to stress, depression, or relationship difficulties before the underlying condition is identified.

For caregivers, understanding that your loved one's behaviour changes are caused by a medical condition — not a deliberate choice — is one of the most important things to know. Behavioural strategies, structured routines, and professional support from dementia-specialist teams can help your family adapt and maintain the best possible quality of life together.