Vascular dementia is a medical term that describes a decline in cognitive abilities including memory, planning, reasoning, and judgment.
When blood flow is reduced to any region of the brain, it becomes damaged quickly and recovers slowly, if at all.
Damaged brain tissue causes the dementia symptoms. When symptoms are severe, they impair a person’s daily functioning and may affect their ability to live independently. In that case, family caregivers may need to help manage their loved one’s care.