The lack of niacin may also be observed in pandemic deficiency disease, which is caused by a lack of five crucial vitamins (niacin, vitamin C, thiamin, vitamin D, and vitamin A) and is usually found in areas of widespread poverty and malnutrition.
Singapore Airlines Airbus A340-500. Singapore Airlines Flight 21 was the longest regularly scheduled non-stop flight in the world, from 28 June 2004 until it was discontinued on 23 November 2013. It flew from Newark Liberty International Airport to Singapore Changi Airport, covering 9,534 miles (15,343 km) in about 18.5 hours flight time. It was operated by an Airbus A340-500. Flight 21 was scheduled to take off from Newark at 23:00 EDT (11:00 SGT) and land in Singapore at 4:05 SGT (16:05 EDT).
The previous record was nine days. He has also made the first solo balloon trip around the world. He also has the longest non-stop, non-refuel solo plane flight, lingering in the air for 76 hours and 45 minutes (also a circumnavigation snuck in there...) Steve Fossett has a lot of free time on his hands.