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.
Comas are caused by an injury to the brain. Brain injury can be due to increased pressure, bleeding, loss of oxygen, or buildup of toxins. The injury can be temporary and reversible. It also can be permanent. More than 50% of comas are related to head trauma or disturbances in the brain's circulatory system.