Measuring over two meters fifty means surpassing most doors, beds, and cars. The record for the tallest man in the world refers to two distinct names depending on whether we talk about a living man or documented history. Sultan Kösen, a Turkish citizen, currently holds the record at 2.51 m. Robert Wadlow, born in Illinois, remains the tallest man ever reliably measured: 2.72 m before his death in 1940.
Pituitary gigantism: the medical cause behind these extreme heights
Before discussing records, one detail matters: these heights do not result from any particular family genetics. In both Sultan Kösen and Robert Wadlow, the rest of the family is of average stature. The identified cause is pituitary gigantism, a disorder where the pituitary gland releases an excessive amount of growth hormones.
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Sultan Kösen’s growth accelerated from the age of 10. For Robert Wadlow, the phenomenon began even earlier, following a surgical operation in his early childhood. In both cases, the body never receives the signal to stop growing, and the bones continue to elongate well beyond puberty.
This disorder leads to severe consequences for mobility. Sultan Kösen moves with crutches, and Robert Wadlow had to wear orthopedic devices on his legs. The height of the tallest man in the world is therefore not just a spectacular number but a sign of a pathology with daily repercussions.
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Robert Wadlow: the absolute record measured at 2.72 m
Robert Wadlow was born on February 22, 1918, in Alton, Illinois. At birth, nothing distinguished him from other infants. The growth spurt began very early, and he grew uninterrupted until his death on July 15, 1940.
His final height, 2.72 m measured during his lifetime, remains the absolute record certified by Guinness World Records. This figure has never been matched or surpassed for over eight decades.
Why does this record still hold?
Modern medicine now allows for the detection of pituitary gigantism much earlier. Treatments (surgery, radiotherapy, medication) can slow the overproduction of growth hormones before it reaches such proportions. Robert Wadlow did not benefit from these advancements.
His death, at just 22 years old, was related to an infection caused by a poorly fitted orthopedic device on his leg. His body was still growing at the time of his death. In Alton, a life-size statue commemorates his silhouette.
Sultan Kösen: record holder for the tallest living man for over a decade
Sultan Kösen was born on December 10, 1982, in Mardin, southeastern Turkey. His parents, of Kurdish descent, and his four siblings are all of average height. As with Wadlow, the contrast with his family alerted doctors quite early.
His official height is 2.51 m according to Guinness World Records. Media initially reported a measurement of 2.465 m, but the Guinness data has been updated to retain the value of 2.51 m. This record has not been contested by a new verified case for over a decade.
Body records that go beyond height
Sultan Kösen does not only hold the record for height. Guinness World Records also attributes him with the record for the largest hands on a living person. His feet are also among the largest ever measured. These extreme proportions are a direct consequence of pituitary gigantism.
Here are the main records associated with Sultan Kösen:
- Height: 2.51 m, tallest living man in the world according to Guinness
- Largest hands on a living person, record certified by Guinness
- Reduced mobility requiring permanent use of crutches
- Overproduction of growth hormones stopped by medical treatment
Medical treatment and stabilization of growth in Kösen
One point that distinguishes Sultan Kösen from Robert Wadlow is access to modern healthcare. Kösen has received medical treatment aimed at stopping the overproduction of growth hormones. This treatment has stabilized his height, something Wadlow was never able to achieve.
This stabilization changes the game. Without it, Kösen would likely have continued to grow and would have been exposed to complications similar to those that cost Wadlow his life. Medicine has prevented the living record from becoming a posthumous record.
Living daily with 2.51 m
The practical life of a man of this stature poses problems that most people do not suspect. Clothing, shoes, furniture, and vehicles all need to be adapted or custom-made.
Sultan Kösen got married in 2013. His mobility remains severely limited, and his movements require constant assistance. Rehabilitation and medical follow-up are part of his daily life.
Two records, two eras, one pathology
The distinction between the historical record and the living record deserves to be clearly stated:
- Robert Wadlow (1918-1940): 2.72 m, absolute record of documented history, never matched
- Sultan Kösen (born in 1982): 2.51 m, tallest living man in the world, record confirmed annually by Guinness
- The cause is identical in both cases: pituitary gigantism related to a tumor of the pituitary gland
Guinness World Records regularly confirms in its annual updates that Sultan Kösen retains his title. No new verified case currently threatens him. Robert Wadlow, on the other hand, holds a record that modern medicine makes statistically very unlikely to beat: early diagnoses and available treatments now prevent such extreme growth.