If there are circulatory problems in the brain, it can cause vascular dementia . It happens more often than expected. Researchers estimate that 15% of people with dementia have this type of dementia. Causes of Vascular Dementia Vascular dementia often develops in people with cardiovascular disease, or in people who have had it. People who have had a TIA are more likely to develop vascular dementia. In a TIA (short for Transient Ischemic Attack), a blood vessel in the brain is temporarily blocked by a blood clot. As a result, someone develops symptoms such as a crooked mouth, confused speech and a lame arm. That blood clot dissolves again, usually within half an hour. The symptoms of failure also disappear. If you observe these symptoms, call your doctor right away. A TIA can be an announcement of a stroke. Also turn out · people with diabetes · ...