Daniel Browning Smith, also known as The Rubberboy (born May 8, 1979), is an American contortionist, actor, television host, comedian, sports entertainer, and a stuntman, owning a total of seven Guinness World Records. Famous for his extreme abilities as a contortionist, he was renowned for his mastery of frontbending, backbending, and dislocations among his peers. Smith attributes his exceptional flexibility to the genetic condition hypermobile Ehlers–Danlos syndrome (hEDS).
While hEDS is relatively common among contortionists due to tendon and ligament laxity, extreme flexibility often necessitates extensive conditioning and strength training to ensure stability and reduce the risk of long-term injury. This requirement is frequently overlooked or misunderstood, and the misconception is sometimes reinforced by performers who attribute their abilities primarily to innate flexibility.