It takes a long time for the tiny coral polyps to create an entire reef. Coral formations grow an average of 1 to 8 inches per year. While ancestors of today's coral date back 240 million years, today's reefs began growing more than 50 million years ago, although most reefs are about 5,000 to 10,000 years old.hile ancestors of today's coral date back 240 million years, today's reefs began growing more than 50 million years ago, although most reefs are about 5,000 to 10,000 years old.
Esophageal motility disorder. An esophageal motility disorder is any medical disorder causing difficulty in swallowing, regurgitation of food and a spasm-type pain which can be brought on by an allergic reaction to certain foods. The most prominent one is dysphagia.
Rare genetic mutation confirmed as a cause of Tourette Syndrome. Brain researchers say they have confirmed for the first time that a rare genetic mutation can cause some cases of Tourette syndrome, with the fault disrupting production of histamine in the brain. Tics are repetitive movements and vocal sounds, and they are unwanted and involuntary - they cannot be controlled.