Contrary to what we may think upon the first view, Tan's growths are not at all linked to bodybuilding or injecting drugs but instead, a rare disease. Tan, 68, suffers from Madelung Disease, otherwise known by the name benign symmetric lipomatosis.
This disease has totally changed Tan's body, specifically his shoulders and neck. Fat deposits have continued to grow larger and larger all over his body, leading to the appearance that we see in the video.
Madelung disease typically affects older men who consume excessive amounts of alcohol. Since he was just 13 years old, Tan has been regularly drinking sake. The abuse done to his body through years of drinking the spirit 'like water' as he says has undoubtedly contributed to his current appearance.