In 2009, Kösen, a Kurd, lived with his parents, three brothers and sister, who are all of normal height. He was unable to complete his education because of his height, so instead worked part-time as a farmer. He describes the advantages of being tall as seeing a great distance and being able to help his family with domestic tasks such as changing light bulbs and hanging curtains. He lists disadvantages as not being able to find clothes legs measuring 126 centimetres (49.61 in) and sleeve length measuring 97 centimetres (38.19 in) or shoes that fit or finding it difficult to fit into an average-sized car.
Starting in 2010, Kösen received Gamma Knife treatment for his pituitary tumour at the University of Virginia Medical School and was provided with medication to control his excessive levels of growth hormone. It was confirmed in March 2012 that the treatment had been effective in halting Kösen’s growth.
In October 2013, Kösen married Syrian-born Merve Dibo, who is ten years younger than him  In an interview he said that his biggest problem with his wife is communication. He said he spoke Kurdish and Turkish but his wife spoke only Arabic.
On 13 November 2014, as part of Guinness World Records Day, Kösen met, for the first time, the world’s shortest living man, Chandra Bahadur Dangi, at an event in London.
In 2014 Kösen joined the Magic Circus of Samoa and participated in various shows around the world. He had been personally approached by the director of the circus, Bruno Loyale, who convinced him to join the circus.
On 25 August 2009 Kösen’s standing height was recorded at 246.4 cm (8 ft 1.01 in) in his home country by Guinness World Records, overtaking former world record holder Bao Xishun who stands 2.361 m (7 ft 8.95 in) tall. Kösen also holds the current Guinness record for the largest hands at 27.5 cm (10 3⁄4 in), and the second largest feet at 36.5 cm (14 1⁄4 in) (left foot) and 35.5 cm (14 in) (right foot).
On 25 August 2010, according to the University of Virginia, a height of up to 254.3 cm (8 ft 4 in) had been confirmed by doctors and stated it was possible this was Kösen’s actual height, artificially lowered by scoliosis and bad posture.
On 9 February 2011 Kösen was measured by Guinness World Records at 251 cm (8 ft 2.82 in) and they also remeasured his hands at 28 cm (11.02 in) which broke his previous record.
Guinness World Records 2009 page 73
“Tallest man – Living”. guinnessworldrecords.com. Guinness World Records. Retrieved 10 October 2014.
“Dangerous Growth Stopped for World’s Tallest Man”. Retrieved 26 March 2018.
“Bodyshock – Episode Guide – All 4”.
“World’s tallest man Sultan Kosen, an ethnic Kurd, marries in Turkey’s Kurdistan”. ekurd.net. Retrieved 26 March 2018. line feed character in |title= at position 71 (help)
“World’s tallest man September 2009”. The Age. Melbourne.
Jaslow, Ryan (13 March 2012). “World’s tallest man, 29, finally stops growing with help from Va. doctors”. CBS. Retrieved 13 M