It's not a stretch to say the world's tallest man is happy knowing he won't be growing any more.

The 8-foot, 3-inch Sultan Kosen has let it be known that he has finally stopped growing at the tender age of 29, according to IB Times.

The Guinness World Record Holder has held the title of the tallest living man since 2010, and actually grew a couple inches from the time he first made his mark. Kosen suffers from acromegaly, which caused his body to continually produce the growth hormone, The Hong Kong Standard reported.

The resulting stress on his body forced Kosen to use crutches to walk. However, things have been better since March, when he finally stopped growing thanks to a treatment at the University of Virginia that he started four years ago.

"Since I was tall, I faced obstacles in life. I had rough days. I couldn't get out of my room," he told ITN.co.uk. "My family had financial difficulties so I couldn't receive treatment. I was secretly crying in my room. I needed to burst out. It restricted my life. But ever since I have been certified by the Guinness World Records, my life has begun anew. I am very happy."

Guinness officials said Kosen is one of only 10 people in human history to grow beyond eight feet. He is the first 8-foot man to be measured in more than two decades.

TALLEST PEOPLE GALLERY
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  • At 8 feet, 3 inch tall, Sultan Kosen was declared the world's tallest living man in 2009 after another candidate, Ukrainian Leonid Stadnyk, refused to be measured.

  • World's Tallest Man Poses Next To World's Tallest Man

    The world's tallest man, Sultan Kosen of Turkey, measuring 8-feet, 3 inches tall, right, poses next to a figure of the tallest man in history, Robert Wadlow of the U.S., after a promotional event in Hong Kong.

  • With the Guinness certification of Kösen, Bao Xishun is now considered the world's second tallest living man. The 7-foot, 9-inch herdsman from Inner Mongolia, China, married in 2007, and became the world's biggest daddy a year later.

  • At 8 feet, 11 inches tall, Robert Wadlow of Alton, Ill., is the tallest man ever to be measured. Doctors attributed his growth to abnormalities in his pituitary gland. He was still growing in 1940 when he died of an infection, caused by a blister. He was only 22 years old.

  • At 7-foot-6, Houston Rockets star Yao Ming is the tallest player in the NBA and one of the best-known athletes in the world.

  • Trijntje Keever of the Netherlands is the tallest woman in history, standing at 8 feet, 4 inches, at the time of her death in 1633. She was 17 years old and suffered from cancer.

  • At 7 feet, 7 inches, Sandy Allen was the tallest woman in the world at the time of her death in 2008. Throughout her life she declined to star in sideshows, but did appear in the Academy Award-winning 'Fellini's Casanova.'

  • Yao Defen of China has been reported to be nearly 7-foot-9, but has never been certified by Guinness. She has declined to be measured in recent years because of her health. She was injured in a fall in 2009, and was left temporarily unable to stand.