The Secret Behind EXO SEHUN's 183cm Height?

World famous K-pop group EXO SEHUN's sitting habit has gone viral. 

On July 24th, there was a post called 'Sehun manages to sit up straight' at an online community.
In the released pictures, SEHUN was sitting straight regardless of the place―including recording studio and awards ceremony.

Even when he has to lower his head, he manages to keep his straight pose. His posture is always straight that the writer―who wrote the post assumed, "His perfect posture is probably the secret behind his height."
People who have seen SEHUN's pictures commented, "Straight-up pose is a challenging posture to do, but he manages so well", and "Wouldn't his back break if his posture is always so straight?" 

Meanwhile, on July 19th EXO released its official 4th album 'THE WAR' and has been sweeping the music charts worldwide. 

(Credit = Online Community)

(SBS Star)