A. The SwabTest DNA paternity test is fast, simple, and painless. DNA is collected using special swabs called buccal swabs.. The buccal swabs are rubbed gently on the inner cheek inside the mouth to collect DNA. Buccal swabs are painless and can be used to collect samples from individuals at any age. Back to Top.
Head trauma . Injury is the most common cause of bleeding in the brain for those younger than age 50. High blood pressure . This chronic condition can, over a long period of time, weaken blood vessel walls. Untreated high blood pressure is a major preventable cause of brain hemorrhages.
Causes of a brain aneurysm. Brain aneurysms are caused by a weakness in the walls of blood vessels in the brain. There are several reasons why this may happen, although an exact cause is not always clear.The brain requires a large supply of blood delivered via four main blood vessels that run up the neck and into the brain.rain aneurysms are caused by a weakness in the walls of blood vessels in the brain. There are several reasons why this may happen, although an exact cause is not always clear. The brain requires a large supply of blood delivered via four main blood vessels that run up the neck and into the brain.