Carotid artery. Carotid artery disease is caused by a buildup of plaques in arteries that deliver blood to your brain. Plaques are clumps of cholesterol, calcium, fibrous tissue and other cellular debris that gather at microscopic injury sites within the artery. This process is called atherosclerosis.
One of the biggest great white sharks ever caught on tape. Before you go, we thought you'd like these... Nicknamed 'Deep Blue,' this great white is almost as long as the 22-foot-long boat the researchers were aboard near Guadalupe, Mexico, nearly 165 miles away from mainland.
Supersized big fish: 21 record breaking rod snappers, in pictures. The Codfather: Fisherman Bert Williams has landed a 93lbs cod that has set a new British record for the biggest cod ever caught by a British angler. Bert, who is 71 and suffers with a heart condition, reeled in his 5ft long catch after a frantic 20 minute battle off Soroya, Norway.