Aortic atherosclerosis is a condition in which plaque builds up in the inner lining of the aortic artery. This condition can cause many symptoms and result in surgery. This article discusses what causes aortic atherosclerosis, symptoms and treatments.
An average scuba diver can stay underwater for 45 to 60 minutes on a 40-foot dive. Many factors affect tank duration, including depth, tank volume, and the diver's air consumption rate.
Stig Severinsen has written a book called Breatheology which helps people find their 'inner dolphin' - a state of mind to help control breathing underwater. He also holds the record for the longest underwater swim, travelling 500ft (152m 40cm) in just two minutes and 11 seconds.