Sports medicine helps keep performing artists on stage Video

Now Playing: Sports medicine helps keep performing artists on stage
Now Playing: Virgin Galactic’s race to get you into space
Now Playing: Instagram addresses a glitch
Now Playing: Exciting news for electric cars
Now Playing: NASA ends mission for Mars rover, Opportunity, after 15 years
Now Playing: Amazon acquires Eero, maker of home Wi-Fi systems
Now Playing: Google says it’s working on augmented reality phone feature
Now Playing: Brick by LEGO brick, student with rare condition builds his own prosthetic arm
Now Playing: The fix is in for iPhone users
Now Playing: Waze app under fire from police departments
Now Playing: Super Bowl takes bite out of Netflix
Now Playing: Inside Science’s top science stories for January
Now Playing: Flickr is now limited to 1,000 photos
Now Playing: Inside Science: Paddleboarding is much more than just exercise
Now Playing: Snapchat’s stock is up 20 percent
Now Playing: Amazon made $200 billion in annual sales last year
Now Playing: CES 2019 kicks off in Las Vegas
Now Playing: This day in history: Jan. 9, 2007
Now Playing: Nissan unveils new LEAF at CES
Now Playing: Apple’s stock takes a hit