Science-fiction books, TV series and movies have often explored the idea of individuals gaining superhuman powers thanks to medical implants—think "The Bionic Woman," or "The Six Million Dollar Man."

UNSW Sydney's Dr. Michael Stevens says the truth is far from science fiction for most people with bionic implants. And while he says there is technically nothing preventing a real-life person today having multiple artificial devices in their body, their day-to-day experiences would be a long way from something you might see in a Hollywood blockbuster.