@minggijeock It is not known whether he really has it or is just speculation, but what is clear is that he has several suitable characteristics (macrosomia, long limbs, long fingers with flexible joints, etc.). But I hope he doesn't have it and regularly check his health.
@minggijeock Hi, sorry for replying in English. It is possible that the reason for his body proportions is that he has Marfan Syndrome, even Yonezu himself is aware of this. You can read this article:
https://t.co/pCExQpiV2m