WATCH: The Future of Medicine

  • Now Playing: Rise of ‘membership medicine’ plans raise concerns


  • Now Playing: Medicine isn’t candy: How to keep your kids safe this Halloween


  • Now Playing: What is Rift Valley fever?


  • Now Playing: The Future of Medicine


  • Now Playing: Vaping use skyrockets among kids, report finds


  • Now Playing: Texas judge rules Obamacare ‘unconstitutional’


  • Now Playing: Man says he feels ex-girlfriend used him to kill her mom: Part 6


  • Now Playing: Did Gypsy Blanchard’s mom have Munchausen syndrome by proxy?: Part 5


  • Now Playing: Woman once praised for battle with illness revealed to have never been sick: Part 4


  • Now Playing: Gypsy Blanchard on what happened the night mom was stabbed to death


  • Now Playing: Woman allegedly suffering from multiple illnesses arrested for mom’s murder


  • Now Playing: More schools are starting classes later to let students sleep


  • Now Playing: Murdered mom said daughter suffered from illnesses and needed wheelchair, feeding tub


  • Now Playing: Woman agrees to become an ‘Immortal Corpse’ for science


  • Now Playing: What does it really take to get a Victoria’s Secret model body?


  • Now Playing: Women having heart attacks wait longer to get help: Study


  • Now Playing: What to know about the new strategy to prevent holiday overeating


  • Now Playing: Man alerted to life-threatening problem on his Apple Watch


  • Now Playing: Don’t eat raw cookie dough: CDC


  • Now Playing: Man confined to wheelchair after spinal injury walks at college graduation