Jordan Belamire's story starts in a snowy, medieval fortress shooting arrows at zombies and giant spiders.

The fortress wasn't real, of course; it was a level in a video game called QuiVr. She was actually standing in the living room of her brother-in-law's home in Redwood City. In her hands were two motion-sensing video game controllers and strapped to her head was the HTC Vive — one of the best and first consumer-level virtual reality (VR) headsets available.

A man using the HTC Vive. Photo by Sam Yeh/AFP/Getty Images.

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How can a 24-year-old medical student really understand what a patient 50 years older is experiencing?

The U.S. population is getting older. By 2040, the portion of Americans over 64 is expected to rise from about 15% to nearly 22%.

While there is a growing demand for doctors trained in geriatric care, Johns Hopkins University puts the average medical student at just 24 years old, meaning medical students may not have had any personal experience with what it's like to age.

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